Entrek Knives - How The Knives Are Made Part 2 - Blade Grinding

[@entrekknives]

I have been grinding freehand for over 40 years so mainly it's just experience. I am certainly not the only one that can do it as most knife makers are quite capable.

[@kylebates3627]

Holy cow dude! that steel flies away like pine on a 36 grit belt. Incredible work ray, I'm lookin forward to the rest of this series.

[@jorismo9711]

Thanks sir! Have watched this video several times now and it has really helped me get a grip on post heat treat grinding. Still have a long way to go but this has been a good lesson & inspiration!

[@entrekknives]

The one on the left is a speed cut attachment on a 1 1/2 hp Baldor buffer. You can't get them anymore but it is a good unit and was my first belt grinder. The one on the right is a Bader B III 2 hp. Both are I think the buffer is 3600 RPM and the Bader is 3450. I like to go fast. Thanks for your interest. Ray

[@11ste999]

One of the best knife making videos one KZbin. You make it look easy

[@entrekknives]

After 40 years making knives it is a small thing for me to pass along some of the experience that I have. We need people that can do more than run a computer in this world and knife makers can do a lot of different things that are needed. If you have the chance show someone else. CYA

[@topgrafter2007]

Lovely to watch a craftsman at work! Excellent video

[@NaluKnives]

Great set of videos, it's an honor to watch your work Mr.E!

[@redchevy1957]

That's nice, I have been making knives for about a year now. grinding the blades on my left hand is the hardest, right hand comes out fine, thx. learning a lot.

[@d3pHc0n]

I believe Terzuola chooses to grind hardened blanks. Something about softer steel being stickier and pulling the grit off the belt, if I remember correctly. Thanks for taking the time to make these videos.

[@entrekknives]

Sticky is a good word for it. I find that it is much easier to grind a hardened blank accurately than a soft piece because the soft steel wants to travel with the belt kind of like spreading peanut butter so your grind is not as crisp and the grind lines are not so defined.

[@entrekknives]

Thank you. Marking the grind lines just saves a lot of time.

[@njeschagunasad]

How do you get to such a precise grind line without a support for the blade?

[@mrandmrswheels1142]

Wow, amazing freehand engineering skill. Just wonderful to watch.

[@razormind77]

I'm a small time knifemaker ...you are a master knifemaker indeed...awesome skills!

[@ernestsheffield9976]

I wish I had your grinding skills. How quickly you ground those bevels is awesome.

[@MsJohnniecool]

EVERYTHING is fabulous but or and -- he is such a wonderful speaker . Uncommon !!! Just Excellent . Johnnie C

[@lasttransmissions]

That was awesome! I wish I had somebody like you to teach me do this!

[@survivalkraft]

Holy crap!!! I have never seen a grinder grind that quickly! Awesome!

[@entrekknives]

The grind is semi-hollow. 8" wheel.

[@entrekknives]

@racepak Yes it is a rubber contact wheel. I use a serrated one because it grinds faster and cooler. some people use a solid face as they grind a little smoother.

[@Nohandleneeded101]

Wow just wow, that skill is unbelievable!

[@JerkofAllTradesTLH]

Ah! I just ordered some 36 grit belts. I also knicked your final sharpening system idea, I put some ridiculous edges on, today. Thanks for the guidance!

[@entrekknives]

I use Norton Blaze 36 Grit belts for rough grind. 3M 120 Grit for finish.

[@MrFerramenti]

Sir your skill is absolutely amazing really nice job. One question if you don't mind, after the 120 grit finish the surface not too rough? I am a hobby knife maker but I thought minimum 400 grit is needed to get a smooth surface. Thanks and Greetings

[@entrekknives]

120 is good for the sand blast finish that I use. If you are doing a satin then yes the 400 is a good place to stop.

[@MrFerramenti]

I got it Sir. Thank you for the response.

[@lasttransmissions]

And it is a well-deserved compliment. One of your knives is on my wishlist/shopping list now. :-)

[@MrTheorac]

Thank you for all the tips and advice on how you work.

[@entrekknives]

Depending on size of course, The big ones like the Ranger maybe 6 or 7 and small ones like the Badger up to around 20.

[@entrekknives]

@molle232 Actually the gloves are in pretty good shape because of the tape. with the tape on I grind tape instead of leather. If I grind without gloves I don't grind me at all but I can't grind as fast as the blades get to warm too fast.

[@entrekknives]

I use Norton Blaze belts they are the best I have so far used they are special but I don't know how they are made or what they use as an abrasive. The knives are drilled and tapped first then heat treated.

[@TheSchnozwanger]

Your knives are awesome, I own a few of them and they all have performed very well . How many blades can you grind before the belt wears out? In other words, how many knives do you get out of each belt?

[@entrekknives]

Except for blanking. We usually have the blanks lasered. Everything else is just as you see it. I hand blank when I need something but I can't afford to run a full laser sheet.

[@TGM9A1]

Hi Ray,very nice tutorial,im just starting to play with making knives,some what semi retired here and looking for something to do,so trying to learn all i can, i do have one thing that will help me with the knife blanks,i bought a rather large omax waterjet machine a few years ago,so i can cut and precision pattern in just a minute or 2, if i could be of any help to you there feel free to let me know, best regards,Tom

[@entrekknives]

Although it will work it would be difficult for me to use. I can put as much pressure as I want on my 2hp without slowing it down. I would probably stop a 3/4hp. The simple fact is that if it works for you keep using it. If you think you need more, go for it. My basic thought is more power, more speed, courser grit when it comes to grinding.

[@JerkofAllTradesTLH]

It's remarkable how fast it is. I run 5200 SFM and it's night and take. Your minute forty is about twelve minutes to me. How do you keep from blowing the temper? Confidence and 40 years experience, I assume. Great work.

[@Tequilla449]

You make it look so easy.

[@entrekknives]

You know, when I started making knives there were only a few people forging knives like Bill Moran and Jerry Fisher. So I learned stock removal and now I just don't have the time to do it any other way.

[@6badfish]

Hopefully I can afford a grinder in the near future. I've wanted to get into knifemaking since I was a kid. Thanks for the video's. Very informative.

[@entrekknives]

I do like more speed 7500SFPM is great. I have 3" and 6" drive wheels for my bader and I haven't used them in years.

[@tummy_fritters]

that grinder is so fast! i love it

[@alkssmith]

This is awesome, especially when a side of a gringer belt eliminates metal to make a knife contour. Could you tell: --- the 36 Grit sandpaper, is it ordinary or a special "aggregated-in drops?" - don't know the term --- what's the material of the abrasive? SiC, Al2O3, ZrO2? What do you think about zirconium for hi-speed steel? --- what company manufactures these? any chance homemade belts can work similarly? Thanks in advance.

[@entrekknives]

The real trick if trick it is, is to use a sharp belt course grit belt. I use 36 grit Norton Blaze belts. With that belt I could do probably 15 Badgers like the one in the vid before I have to really pay attention to the heat. Also you don't stay in one place too long.

[@entrekknives]

It is an 8" drive wheel at 3600 to get the 7500fpm

[@entrekknives]

Thank you. One thing people should remember is that the only thing I do to maximize the potential of 440C is to properly heat treat it, which includes subzero stabilizing. Many people are not willing to pay the extra money to get it done right. I am.

[@molle232]

I love the videos and have decided to order one of you knives , only problem is not sure which one yet,lol I would like to see the proceed from my purchase go to buying you new gloves (ones that do not need hockey tape on the fingers,lol)

[@entrekknives]

At one time the notch in the back of a blade was used to catch and or break your adversaries blade. In my case I use it to fix where the edge starts and so that I can sharpen the full edge.

[@josephrector8735]

I kept waiting on the brim of your hat to hit the top if that grinder when you were profiling the blade.

[@entrekknives]

it gets close but it's still OK

[@chriscyvas]

What kind of grinders are those? Thanks! Impressive!!

[@beeman715]

Great videos!! What kind repirator and filters do you use??

[@jz0111]

Grinding the bevel in a free style even you mark it, is still very skillful!

[@multitoolproductseurope4948]

superb! so fast and accurate!

[@entrekknives]

Yeah that 2 hp Bader really goes.

[@mrdarren1045]

To save me looking this thread for the info what steel are you using? Using some of the chrome heavy alloys are notoriously hard to grind. Would these belts eat away the metal like it does in your video. I imagine really tough steels might destroy your belts a lot quicker. What is your experience of steels like 3v or the vanadium alloys and elmax for example.

[@entrekknives]

In the video I am using a 3M 977 belt in 40 grit at 3450 RPM it does go fast doesn't it.

[@doggonemess1]

Can I have that belt grinder for Christmas this year? I'll be really good, I promise!

[@crazewolfe5734]

Holy hell! Can't believe your able to grind hardened steel to profile like that...looked like you were grinding aluminum or something lol. I'm using a 2x42 and mainly use 36 grit ceramic belts. Awesome grinder and grinds man :)

[@VicariousReality7]

Very nice grinder, but why is there no protective shield

[@tylerdillon6229]

1:50 what kind of a grinder machine is that?

[@dtknivesusa2286]

You're my idol man. All your videos are great and inspiring. If you ever want some free help i'd love to do it just to gain some insight and technique from one of the greats such as yourself.

[@entrekknives]

Thanks, where are you? Maybe we can get together and talk.

[@deathofkindness]

Curious...how close do you grind the edge to before you sharpen it?

[@mightydagon]

I love how you've maximized the potential of 440C. Tough as nails, your blades.

[@mahahaha017]

i have to admit i thought it was gonna be just another guy with a file sayin slow and careful over and over again,, man was i wrong,, im super impressed with the skill you have working that blade on the sander, nice work, and the blade turns out perfect, nice,, well on to the 3rd part then to check out the website

[@Markkrochuk1979]

Thank you for these videos, that belt sander was just eating that steel!

[@entrekknives]

About 7220. 8" wheel at 3450RPM

[@Roosterdad50]

I was just schooled big time. Respect.

[@andrewhellsing7365]

i have one of your knives i got it a a pound shop but i need to fix the tip its was a bit damaged how can i fix it

[@mdavidlem]

Unreal, you are an inspiration

[@giojiu]

Great work ! Well done !

[@Voltermort]

Is that a vacuum under neath the wheel of your belt sander?

[@entrekknives]

Yes it is.

[@alkssmith]

I have a 2.2 hp engine and thought it would grind fast enough to spend less time for one blade, this being overall more economical, than 0.75-1.1 hp engines. Is this right? I work mostly with hi-speed W18 steel hardness 60-62.

[@محمدعبدالله-خ6ع8غ]

1:23 this is WOW ...... THE BEST PART OF KNIFE GRINDING IN MY LIFE

[@entrekknives]

That is quite a compliment. Thank you

[@Mwrs99]

That grinding was insane O_O

[@entrekknives]

@joshuafoxler13 First of all in the vid you notice that I put lines that i intend to grind to and that really helps but most important is if you have a difficult time with the same side all the time grind it first and then grind the side that is easiest for you to match it. Ray

[@kennyv6135]

Hey Ray! When you cut threads into your blade for the handles do the screws you use just meet up in the middle where you threaded the blade? I notice you dont use glue on your handles. Is it because its Micarta? Should I use glue if I use wood? Whats your thought? Thanks Ray! Awesome stuff.

[@entrekknives]

Yes the screws meet in the middle but don't touch. That way you know the handle is completely tight. I use 8x32 thread so even on a 1/8" knife there is room for two threads on each side. I don't use glue on micarta because it is flat and stable. I always glue wood and other natural materials.

[@kennyv6135]

Thanks Ray! Ive been trying to cut down my build time. You do make it look easy. True talent! Have a Great day and thanks for the response.

[@entrekknives]

You are too kind Grasshopper.

[@jielixiong]

What's the name of that tool for sharpening?

[@warrenbuitendag5286]

man that belt grinder takes metal off fast!

[@dtknivesusa2286]

Yeah Id love to get together sometime, but I know your a busy guy. I'm from upstate NY. I do have one burning question. Do you do any hand sanding before sandblasting? If not, what kind of surface grinding wheel do you use? Thanks for the reply.

[@entrekknives]

I go to a 220 Grit before I blast. No hand sanding.

[@entrekknives]

We will be doing satin finished knives as part of our premium line. Watch our Entrek USA Premium knives page on facebook

[@petefuentes62]

You Sr.Have my absolute respect, Be well.!

[@entrekknives]

He has great stuff.

[@yeehaw94]

What's the SFM on that grinder?

[@mtlwarrior1]

are these ground flat hollow or convex?

[@ChrisBrown-qh7dp]

I hope you would start sending satin finish knives to your dealers

[@MrAlbacea]

Master, my machine is 1.150 FPM and 3/4 HP, good for the job? 2:22

[@NE_Ohio_Hiker]

awesome video!

[@madbull338]

Amazing skill.

[@MrDonohuea]

Why wouldn't you do you're initial bevel grind and stock removal before heat treat, and then surface grind? There's no way that doesn't affect the heat treat.

[@entrekknives]

I don't do the initial bevel grind because I have had knives warp during the heat treat process. And no it doesn't affect the heat treat if you keep it under the temper temperature. You can take the temp up to 400 degrees 400 times and it will stay the same.

[@miamimagicians]

WHAT DO YOU THINK OF SNODY?

[@drizzt811]

what machine is that?

[@entrekknives]

As long as the belt is sharp, yes.

[@flaviobove]

senta le sue mani sono l'anima dell'arte pura.be credo che non ci sia nient'altro da dire tranne che lei è un grande artista

[@entrekknives]

@beeman715 Its 3M I get em at Lowes

[@fromsparktofire]

Man you make that look TOO easy!

[@jazon9]

WOW ! You are a master.

[@Sorgkald]

Holy shit that grinder is awsome

[@clippertalk]

Master knife maker, he's a machine. Wow.

[@fractalInsanity]

lol when i saw that belt grinder omg.. great work =)

[@knivesandstuff]

That grinding speed is excellent. I think the grinder I had made runs at around 4600SFPM.. I think I might need to build the rear wheel to a larger diameter and get some more speed.

[@braselforge]

man is that sander huge

[@entrekknives]

Hey Tom I would like to talk to you about the waterjet sometime. Could you e-mail me? Thanks Ray