Basics of Drill Selection - Haas University

In the inaugural episode of Haas University (Haas U), Manufacturing Engineer Andrew Harnett guides you through the basics of selecting the proper twist drill. You'll learn about the pros and cons of choosing high-speed steel, cobalt, and carbide, as well as advice on coatings, drill point and flute geometry, and more. How many times have you just grabbed the closest drill without really knowing if it's the right tool for the job? After watching this video that should hopefully be less of a problem!
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[@cathys949]

I'm a 70 y.o. housewife, and watched this whole thing with interest. I love learning new things!

[@whatstdiggn]

You would get along swimmingly with my girlfriend. She's better with power tools than I am andIworked at a hardware store for a decade.

[@glenndwyer5786]

I should of married you,I been in a family business since I was born

[@unclemike8467]

This is probably the most informative, no-nonsense, and to-the-point instructional video I have ever seen on KZbin. Anyone wanting to publish help videos should use this as a template.

[@funkycoldm3dina]

Hi there Mike. Hoping that you are well. I have to say that I absolutely agree with you. I have watched quite a few videos and I have found them to be at the best of times umming and ahhing. This is a superb video because it gets to the point. The only thing that I would so and it is a minor niggle is that the bloke is really serious looking. LOL. Otherwise, you are spot on about the video being a template for others to use. Bye4now...

[@jimburnsjr.]

agreed... he has the right stuff... no bs.. no childs play.. no politics... no bad habituation... just clean and strong.. this is the style we need to see in all of them.. and a lot.

[@mistersir8342]

Isn't this an amazing presentation? Many machinists grow old and retire and still have no grasp of this technology. Many thanks.

[@zwekkerboy716]

0:00 - 1:01 Introduction of the Drill Sergeant 1:01 - 3:10 Material of the drill 3:10 - 5:49 Coatings of the drill 5:49 - 7:19 Geometry of the drill (Length) 7:19 - 8:51 Geometry of the drill (Drill point angle) 8:51 - 9:43 Geometry of the drill (Self centering point) 9:43 - 13:27 Application tips 13:27 - 14:35 Recap Thank you for the video sir, enjoyed it and teached me a lot.

[@amirb3083]

Sergeant! Haha

[@gerardburton1081]

He does come across as a drill sergeant.

[@arduinoversusevil2025]

Forget the CNC machines; sell us your Tool Crib Attendant Taming System! Richard was civil, knew what you wanted, had stock *AND* got you the right stuff first time?! Musta had something to do with those flux capacitors.

[@definty]

Sup turtles!

[@Limeayy]

DUH HELLO AvE

[@per-5786]

Uncle!

[@Coltgov191145]

I was just about to ask if they had any extra flux caps I could buy...

[@demlotcrew]

Deary me, Ave gets about!

[@WaynePilot]

This can't be a KZbin video. This literally is a college lecture for material engineering.

[@BigLeagueDrew]

Wayne ask for a refund, bud.

[@iviaverick52]

KZbin University is a better value than actual college.

[@ukaszzakrzewski9893]

@@iviaverick52 100% true

[@MysticEbony]

Will it is one and if it's a college lecture for material engineering then people who do that job can come here too right? Think with your brain human.

[@honey3431]

This is actually a lecture ;D

[@willclark491]

So many videos end up being advertisements for a specific product or service. Haas just dumps a bunch of very useful information, and a few things to think about. Fabulous! Thanks Haas!

[@PrimeSuperboy]

I can't believe how good the production quality was on this video. Your use of the diameter visualizations, chip evacuation, helix angles, and through tool coolant holes was really effective at getting your point across.

[@alexanderzsilco7506]

It's 3:30 am, I am a teacher for english and geography. Tomorrrow is a big day, and yet, I am AMAZED by these tutorial videos from Haas Automation and I can't stop watching them!

[@devianb]

This is without a doubt the most comprehensive guide to drill bits that I have seen. Answered all my questions and then some.

[@michalwalks]

Wow, this is the ultimate short course on drill bits... with no filler. 10/10

[@BigBoyPharma]

I am a pharmacist... I dunno why im watching this but its fun

[@ruppedogg]

Still will be hanging pictures/items in drywall at home! Why not know the ideal flute length to maximize your hole precision? ; D

[@Relay1919]

Be in in by

[@ndav8r]

Knowledge is golden!...I'm a machinist have looked at pharmacy videos!

[@alexanderbelkin5978]

Because every man must to know how to make a hole.

[@ablemagawitch]

some of your patients need holes in their heads?

[@deanii3993]

I work in drill bit production and I have to say this would be an amazing video to show every employee at orientation. Super informative, thanks.

[@BobJones-cr1pl]

From someone who machines parts EVERYDAY ........ This is an excellent and VERY informative video. Thank you Haas.

[@haasautomation]

Thanks for the compliment Bob!

[@jamesjacobs1909]

I've been bus 'tin drill bits a long time in my automotive machine shop, but thank God for the MAC guy! Hope he appreciates me watching this video now.

[@BenPasriche]

Really there are so many comments cheering up the work. But I have to write mine... Just found this channel. I'm impressed by th quality of the video. IM-PRESS-IVE quality. Amazing free content. This is some quality I'm expecting in a paid program...

[@AjvarD]

This person told about drills as if he is Sergeant who tells his squad about new type of weapons.

[@shubhamsalunke1232]

Yes. That was interesting though!!

[@weldmachine]

Yes he does come across that way, lol.

[@metalbob3335]

it got through my thick skull .

[@maxsolo2652]

Drll Sergeant

[@texasboy2005]

I wouldn't be surprised if the tattoo on his forearm was military related.

[@obaidmengg]

Just started the video but the first thing I want to say is Thanks. Really appreciating your effort. Keep enlightening the young minds.

[@haasautomation]

Thanks for the comment Obaid. We are definitely hoping to enlighten young and older minds alike. As always, the comments we receive are enlightening as well.

[@stevebell6904]

I now know more about drill bits than I know about anything else in my life, and I've been a computer tech for 30 years. Damn, that was a journey. Thanks dude!!!!

[@keereelewah4524]

Just getting into machining in the home shop. Videos like this are invaluable. Thank you.

[@Heseblesens]

Have to say this video is one of the most informative, professional, no nonsense and easy to follow tool videos I have come across, ever. I do not think anyone could do a better job as a presenter. Stellar work Sir!

[@NerdlyCNC]

Super pumped to see such killer content coming from Haas!

[@haasautomation]

Thanks Nerdly! We're pumped that you're pumped.

[@cuckingfunt9353]

Colonel Miles Quaritch Saftyspecs is a formidable foreman .... Wouldn't want him breathing down your neck.

[@dannydetonator]

@@haasautomation Seemed like an (US/ RU) army drill, lol. Totally worth it, i'm from east-EU btw👍

[@coryboettcher9702]

Toured your guy’s factory in LA when I was 16 or so, super fun, you guys were outstanding, explaining everything in understandable terms great. Had an awesome time, glad you’re putting out great content here!

[@jcolonna12]

This video is fantastic! Haas automation really outdid themselves here. More companies should follow suit with their video quality and passion. You guys are the gold standard and your company definitely gained a new subscriber. Keep up the great work

[@johnames6430]

yes and with the cheap sound effects 😂

[@billmccandless5764]

everyone needs to remember that whether it is a CNC machine or just a manual drill press you are not buying drill bits you are buying holes. How much do you want each hole to cost?

[@OU81TWO]

Bill Mccandless That can apply to everything.

[@nbowling10trio]

Manual drill press you better have all self centering or split point drills if you want to be efficient. They take alot less pressure to get thru the material. Much much faster. Tip will tend to chip more in harder tougher materials than standard point. They also tend to size holes better unless you are trying to get a thou or two over the drill size then use standard point.

[@billmccandless5764]

Nick Bowling all we stock in our tool room are T4 split point up to 1/2 inch. Everything over 1/2 inch are silver and Deming half inch Shank.

[@haasautomation]

Yes Bill, exactly. How much does each hole cost?

[@ramtrucks721]

Bill....Stfu with ur stupid theories

[@jborde]

highly informative! Well laid out, tone, delivery and full of content. Definitely one of the better videos I've seen on here. Keep it up !

[@carenbarnet378]

Thankyou for your in depth descriptions. I am between a non-machinist and a hobbyist. In this short video, you have educated me, why there is a need for specific drills. It makes more sense to me. So with this extra knowledge, I can source the appropriate drills with a much better understanding.

[@paulmiller677]

Very intriguing video !! In 1972 I worked for an industrial distributor. We were a Cleveland Twist Drill distributor. I had a chance to go to the Cleveland factory for a week. I received training and watched twist drills being made !!

[@keenstudio1424]

Great video. I used to be a cnc operator, so I appreciated the insight into the options and why you would use them, but I am now a designer and animator. That part of me really appreciated the motion graphics used in this video. they kept the visuals interesting.

[@Limeayy]

This is a great video. Very informative, keep up the great work sir!

[@haasautomation]

Lime, Thanks for the comment!

[@Saki630]

I need to sleep, but I became a CNC machinist in 14min thanks to this video with great sound effects.

[@manojjohnaxelsson2856]

One of the best videos about drilling technique and parameters online... Short, to the point and drilling it down all the way 😜

[@snakedike]

I'd love to see a similar discussion on best methods for determining optimal feeds and speeds for drills. Thanks for a real informative video.

[@XIIIStefanC]

I have a metalworking guide book that has graphs about that. I think you can order that online

[@repetemyname842]

Every metal or alloy has a set cutting speed, the harder the material the slower the cutting speed. A standard formula for machinists is 4 x cutting speed divided by diameter (of your cutting tool). If using carbide you can triple the result. And all this is just a standard starting point, final numbers will depend on your set-up and machine. There should be plenty of material online whether in video or book form to get you ballpark numbers.

[@zorkan111]

0:21 Damn, Richard is awesome. He knew what the guy needed before he even said anything.

[@slyztercoreveanged7587]

liking this video for how detailed and easy to understand this, most of stuff in college wont be explained this deep and this easy to understand...

[@velvia7880]

What an incredibly educational video and presentation. Short simple explanations and promptly to the point. Feels like many, many years of experience condensed into less than 20 mins.

[@itsgalf]

Excellent video. I really appreciate the crisp production and animations. Very rare to see such great animation.

[@haasautomation]

itsgalf, Thanks for the great comment! It does take time and effort to get good animations done correctly. We don't do it everywhere, but where it seems like it will help we strive to use animation to make the subject easier to understand.

[@ilyasabdali7213]

I am a drill bit manufacturer sir and this video is really very helpful for me ! Keep on posting stuff like this ! Please make a video on the difference between branded cnc inserts and their copies because it's very very difficult to differentiate between them !

[@ajibadesamuel4578]

Great explanation of the different types of drill material, coating, and application. Thank you Haas University.

[@muhammadyousuf6698]

Since I was a kid, 7 or 8 something like that, I would stand near a bench drill in my dad's shop and watch him drilling. Seeing drill bit cutting through iron and two long coils of shaving swirling was fascinating. It was magnetic to watch one metal going into another. Later I too had drills and HSS or titanium bits in my life and learned by doing. Sixty or so years later, it is first time I am seeing a beautiful short course. Thank you so much Haas.

[@Thepriest39]

Great video. I have never thought of reducing the speed at the end of a cut.

[@haasautomation]

Thepriest39, thanks for the comment.

[@TroyBlass]

I never would have thought about reducing feed before exiting the part. Thanks

[@hory13ejmo]

Best video ever about drill selection. Over 14 minutes of no bullshit talks, just straight to the point. Thats exactly what i want to know and watch on yt. Keep it up ! Looking forward to see new content.

[@deanslegos1990]

Video is 10 out of 10 for production, content and conveyance.

[@tubergenmotorsports4193]

Thank You Haas! Great information, well explained.

[@javierrosa6317]

Henry Rollins truly is a renaissance man. In all seriousness, this was a really informative video. I’m not a machinist, but this helps me with questions I didn’t even know to ask.

[@bruceschneider4928]

I was just looking for info on the right bit(s) to use to drill holes in 1mm thick steel plate. This video proved very helpful. Nicely done, clearly presented, with good business cases in mind. Thank you.

[@maximusmock]

I just had to comment... this guy is absolutely the best spokesmen I’ve ever seen. He’s 100 percent confident in his explanation. He speaks intelligently and experienced with none of the usual um, and, etc. nice job. And by the way I do actually use drill bits so very educational.

[@zhirnovmaxim]

Замечательное видео! Впервые вижу описание оснастки без "рекламной чепухи" и маркетинговых слоганов. Все наглядно и понятно рассказано, теперь у меня есть более чёткие представления об этом типе оснастки. Автор - молодец, тема-огонь!

[@haasautomation]

Maxim, Спасибо за большую похвалу! Мы прилагаем все усилия, чтобы дать объективный контент, который будет полезен для наших зрителей.

[@evm7272]

Its 1 am and this video popped up in my recommended. Idk why. Idc why. But i do know one thing: what kind of drill i need.

[@Trumpetblast92]

I don't think I've ever paid such intense focus and given such close attention to a video that will never affect me. I work in software and have no need for anything like this, but the presentation was so good and informative, I was with you the whole way through!

[@joshuadoster7289]

Don't know if anyone else caught it, but at 0:45, he's holding a PTD (Precision Twist Drill) green box, as well as two others that I couldn't identify. As the factory rep in North Texas for Dormer Pramet - corporate brand for PTD, Dormer, Union Butterfield and Pramet - I couldn't help commenting and thanking HAAS for this video and their use of PTD. Content of the video was on-point, and a very helpful resource that I will be passing on to my customers.

[@princedemiterios2488]

This is the sound of experience talking , that's neat , Thanks, i have learned something.

[@andrewirwin6765]

its nice to see that haas wants its customers to succed in the cnc industry

[@LeftTechticle]

This is an exceptional presentation of information. Even the camera and soundwork, and animations are perfect.

[@landothegreatest666]

Fantastic video, I work in a power tool store and I just learnt a TONNE about drill bits

[@Janescheekychickens]

Hello there. I'm from the UK. Just wanted to let you know this was very informative for me. I'm drilling a hole in an old cast iron pot . And bought a 13inch drill bit that is made with cobalt. I did actually buy a smaller one to make a pilot hole. But I'm struggling to get the hole drilled, but I think it's down to my drill being old and slow. It's just a hand drill for home use. And I doubt I'll ever use the drill bit again because it's a garden feature pot. Won't be drilling many holes in cast iron again. Any way thanks for a good tutorial 👌

[@jimsvideos7201]

Good on you for putting this together.

[@aminaghaii5522]

Most learning in shortest time. If only I could find this type of video on every topics.

[@jonfeuerborn5859]

Excellent video all around. Very informative, nice use of graphics and video footage, and excellent economics of time spent vs. knowledge supplied. Hats off to the team that produced this.

[@tucobreakinbad5000]

This video was Tight! Tight! Tight! Tuco - Arizona

[@tucobreakinbad5000]

By the way, why is the TiCN Bluish? Then again, if it's blue, it's the good stuff!

[@wadesmith9483]

Just remember who you are working for. What did you say? Awe well I’m just saying they need to remember they work for you tuco.. u think they dnt know that? Your think they r stupid? U think I’m stupid that you need to talk for me? Naw tuco it’s not like that... POP! Pop pop pop pop on and on... “Whoa!!!” “Look at that” then crazy laugh.

[@nosignal2079]

So when is the video on how you sharpen them? Great video thanks!

[@maxsolo2652]

True Drill Sergeant Drills information right into the brain in one go, just like a Carbide drill with TiAlN coating and cooling.

[@technewsfortechnoobs]

I have no idea how this video found its way into my recommendations....but it was still fascinating to watch regardless. :)

[@nightdevil6666]

Finally a video on KZbin without cats and fake millionaires. Well made and informative. Good job.

[@1800JimmyG]

0:10 FLUX CAPACITORS! ;)

[@horseshoe_nc]

Go to O'Reilly Auto Parts' website and search 121G.

[@stuart99299]

We have one on our vf4ss. Parts are done before we can close the vice.

[@tubergenmotorsports4193]

Good eye Jimmy! That's great! LOL

[@rosacat5833]

Had to reverse time to go see it again.

[@fouzaialaa7962]

wtf is flux CAPACITORS ?? im kinda new

[@eco-racers9542]

Great video, I really learned alot from it. Being a newbie I have followed your channel for little while and you guys have put on some really good how-tos .Keep up the good work.

[@Bultish]

Im an old tool maker from Sweden 🇸🇪 I only worked manual lathes and mills. This is heavenly content 😍

[@vader3t3]

Damn, I wish my lecturer was this precise in his language and presentation.

[@haasautomation]

Tea Time, Thanks for the compliment. We're happy to hear that these videos are well put together.

[@skullandcrossbones65]

G'day, My father (retired plumber) recently asked me if I (Fitter and Machinist) have heard of left handed drill bits. I said yes and I have several of them. He asked what they are used for. I told him that they are good for drilling left handed holes.

[@laszlodudas7313]

For drilling extra long holes with more than one drill bits it is suggested to drill the pilot hole with left-handed drill bit before the normal right handed extra long drill bit. See: kzbin.info/www/bejne/iqPbamxjpLlliJo 8:08

[@normansidey5258]

What is there to dislike? There are some real curmudgeonly people on this planet. I am 73 year old English retiree general maintenance engineer,. and found this extremely well presented and informative, thank you very much indeed

[@folk.]

I don't even work in the industry nor a shop, but this is why I subbed to this channel

[@tomte47]

Working in a tool and die shop we got some new mills a few years back with through coolant so we started trying out carbide drills, now we do the same or more work in 2 machines that we did in 6 before. the old machines are sold off or just gathering dust. In tool steel through coolant carbide is more then 15 times faster then peckdrilling with regular black hss drills and the drills can last 1000+ holes.

[@haasautomation]

tomte47, Great comment. From our experience here at the Factory with customers converting to using TSC and carbide, not to mention what our tool suppliers tell us about their similar experiences ..... TSC and carbide can be a game changer when it comes to drilling more productively.

[@russjohnson2811]

You might want to talk about center drills. Center drills are for lathes. If and when you need to spot for any drill, the angle of the spotting drill should be greater than the angle of the drill. this will allow the tip of the drill to engage and do its job correctly.

[@PeregrineBF]

Also gun drills, for extremely deep holes. Though that would be a whole other video.

[@nbowling10trio]

For gun drills and very deep holes we always drill small and circle mill a pocket to resemble a guide bushing. Works great for keeping deep holes straight as possible

[@windscreen91]

I'd like to hear a reply on this too. I was taught to spot drill with a smaller angle for HSS and Cobalt, and a larger angle for carbide. The reason given was that for steel drills (less stiff), you wanted the lips to touch first, for best self-centering. Carbide is stiffer, and doesn't need the help, plus it has a higher tendency to chip if the lips touch first, instead of the chisel point.

[@russjohnson2811]

never heard that one before. All drills should begin cutting at the chisel point. the spot drill angle should match or be greater than the angle of the drill. This In the Loupe blog from Harvey does a good job of explaining the process. www.harveyperformance.com/in-the-loupe/choosing-spot-drill/ When spotting, you want an angle that is larger than the twist drill’s angle if possible. The narrower the spot angle (i.e. 118 to 60 deg spot drill) , the more likely cutting lip contact will be. If the twist drill’s cutting lips, or flutes aren’t perfectly sharpened, one will contact the spot hole before the other and the drill will try to deflect. This defeats the purpose of spot drilling and can result in a less accurate hole. The broader angle of a true spot drill, (I like 140 degree angle tools) means the tip of the twist drill cuts first, which makes for a more accurate hole. Lastly, the web of a spot drill is typically thinner than a center drill, so it cuts more easily and with less heat.

[@windscreen91]

I believe Harvey tool only makes carbide drills, and that article is written in regards to carbide. Guhring, who I think is one of the best drill companies, says differently. www.guhring.com/Documents/Catalog/Drills/NCSpotDrills.pdf

[@shaundonovan2193]

This is the best explanation of drill bits I've ever experienced. Great Job Sir.

[@jasonneugebauer5310]

Great video, high education value with amazing graphics. One of the very best training videos I have seen.

[@devildestiny555]

Darn, wish I had seen such video 10 years earlier, would have saved a lot of money and frustration. Haha.

[@AntonioClaudioMichael]

Great video

[@tapsulinka]

We are drilling aluminium quite a lot. I have asked information from the drill bit suppliers but nobody has given even near as good information as you at this video. So far best information about drills I have ever seen

[@alexsafonov7270]

his enthusiasm for the subject matter is admirable, as well as his earnest demeanor. this was an informative journey, thank you.

[@A1BASE]

Holy crap this is amazing information! Now if only I wasn’t primarily into woodworking... 😂

[@dancahill9122]

A1BASE : Right on sir. I'm also primarily into woodworking with a farm background and and just a smattering of machine shop work. And I watched the whole thing, beginning to end !

[@c0nstantin86]

So inspiring that makes me want to forfeit my office career and just start drilling... But I have no clue what...

[@jbbudish]

It is the engineer inside you calling

[@c0nstantin86]

@@jbbudish - thx! :)) God bless!

[@barretharms6948]

I'm just starting out with my drill milling machine. This particular video is very helpful, thank you.

[@farosrohmangeloraramadan3897]

very detailed describe thanks sir :)) iam from indonesia

[@acedog5]

Why am I watching this the night before my calculus test?

[@acedog5]

I literally just find this to interesting to stop watching.

[@fieroavian]

understanding drill bits would be lifetime beneficial, not just your current semester. that being said, hope you didn't flunk your test.

[@leteveryoneknow]

May be you are destined to become a machinist instead of a mathematician. Or may be nothing. Lol. Get yourself together.

[@Babihrse]

You ultimate procrastinator

[@Aviatr23]

What a fantastic video. The instructor is a real pro as well. Great job.

[@zHipposaurus]

This 14 minute KZbin video taught me more than my Manufacturing professor did in 1 hour and a half...

[@BurtonsAttic]

Clear easy run down!

[@scott5605]

The flux capacitor sign killed me. I once had a dead weight in my engineering design class and he asked me what our motor drivers were called, I told him they were dual flux capacitors. During our presentation he actually said dual flux capacitors! Be afraid of this next generation of engineers...

[@steveg2509]

Very well presented. Totally enjoyed his presentation. Give this guy a raise.

[@HeavyboxesDIYMaster]

This guy takes drill bits seriously.

[@MrFaaaaaaaaaaaaaaaaa]

This guy owns

[@sdafkjwkop]

KZbin: Hey.. wanna know bout drill tips? Me: Aite

[@tracimartinez1807]

Great job Haas! Always coming up with new ways to educate people. Very inventive.

[@MrGerdbrecht]

Very good compressed knowledge transfer that gets you started. Thx you so much. Its always nice to see somebody making a video that contains actual value and values, in contrast to all spam on the internet. Your video is a light in the dark.

[@haasautomation]

Thanks to everyone for all the comments, we are working on answering as many of your questions as we can. We’re pleased to see the number of views and comments on this video, and we are looking forward to making more episodes. Currently the plan is to continue this series with a video on end mill selection, then tap selection, but beyond that we are open to suggestions! Let us know what you want to see, what subjects would be most helpful to you. Thanks for watching and see you in the next episode! - Haas Automation

[@scarlaton1]

A detailed look into coolants would be good.

[@haasautomation]

James, If you do a quick Google search on Machine Tool Coolant you'll find the 1st video links are probably to several of the coolant related videos we've made. Or you can click here to go to the KZbin playlist for our Coolant Series. kzbin.info/aero/PL1FfK7Yod27fuiQ4ZSRAnTT7Ut0wJCGRP

[@JasonFowler]

Very well laid out presentation.

[@thundercuck1779]

This series of videos is fantastic, Very professional, suggestions, Drills specialised (hole making), Reams, gun drills, long drills, indexable drills, boring drills, boring heads. Why boring head is more accurate vs interpolating ect. Drills with replaceable tips End mills, (solid 1 piece) 1 flute, vs 2, 3, 4,5,6,7,8 ect helix, variable flute, radius on corner benefits vs sharp, Difference between macro, micro and nano grain carbide (carbide vs filament in material, why nano lasts longer than macro and micro ect.) Please include all types of milling strategies that can be included, helical, copying, contouring ect Special mills - Ball, Bull nose, tapered and what strategies they perform better at ect Taps For taps include the major difference of geometry that include the sworf direction of travel - Blind vs thru, include the 4 thread milling operations - thread cutting, forming, milling and punching. Include ones that need no hole for thread milling? Insert mills , (90 degrees vs 45 degrees vs 10 degrees high feed, buttons) Why the geometry is important for difference feeds ect. The 4 machining strategies in milling, conventional vs high performance cutting standard vs high performance cutting trochoidal vs high speed cutting trochoidal... Explain why chipload is different in these types, why past below 50% radial cuts you get chip thinning ect Non ferrous vs ferrous machining and rules of thumb, plastics Exotics materials. Advanced machining - High surface finish machining, "peening" machining, and using the harder materials above carbides (ceramics and diamonds) Keep up the good work

[@eloyvanlieshout641]

Haas Automation, Inc. Face milling with insert carbide plates would be an interesting topic?

[@garciavashchino1]

I feel like fighting a war somewhere... while picking off my enemy, I'm lecturing them on incorrect use of drilling and heat dissipation... argh!!!

[@garykhakhian4321]

What a brilliant presenter, man I could learn so much with a instructor like that .

[@daveys]

Excellent info, very well presented. Thanks for making this.

[@jamestrousdale2841]

Flux capacitors? I laughed so hard I had to pause the video.