Make HSS Boring Bars For Your Boring Head

[@KodyBear5605]

Yuchol, Brudda, you never cease to amaz... You bring "Hobby Machinist" to a whole new level... Thx for sharing your skills.

[@woodscreekworkshop9939]

Dave Lee thanks Dave. I try to do the best I am capable of doing, sometimes that’s good enough, others not 😁

[@jamesdavis8021]

Nice work.I am glad you cut a radius on the inside edges.That was a professional touch.

[@woodscreekworkshop9939]

Thanks James

[@CreaseysWorkshop]

They came out lovely. Your mill purrs like a kitten when you run it. I wish mine was so quiet!

[@woodscreekworkshop9939]

John Creasey that’s because I pre warm up the belt before recording. Otherwise it screeches and burps for awhile. Even tried belt conditioning spray with mixed result. What I do for my viewers 🤦🏻‍♂️😆

[@CraigsWorkshop]

You're getting a great result with those boring tools, your toolbit grinding mojo is at full power :-D Great stuff. (Hope you're keeping safe - and staying home) Cheers, Craig

[@CraigsWorkshop]

PS: I will have to check out Stefan's video to see why the design includes a top-screw and push rod, rather than just a bottom screw.

[@woodscreekworkshop9939]

Thanks Craig

[@DudleyToolwright]

Oh yea, I forgot you have the Narex boring head. Jealous! Nice project - beautiful results.

[@woodscreekworkshop9939]

Thanks Robert, my best $300 ever spent

[@bigmotter001]

Nice job Yuchol. I have added making several to my project list. Thanks for the video and take care.

[@woodscreekworkshop9939]

Thanks John

[@MattysWorkshop]

Gday Yuchol, nice boring bars, the stainless wrap for heat treating really does make a difference, I seen Keith Rucker use one the in he’s last video and worked very well, and so did Adam, thanks for sharing another great video, please stay safe, Cheers Matty

[@woodscreekworkshop9939]

Thanks Matty, stay healthy!

[@EverettsWorkshop]

I like the central rod bit locking method, that's a good idea. I need better boring bars for my smaller boring head and might need to 'appropriate' your idea.

[@kentuckytrapper780]

Excellent job, great looking bars.

[@mohabatkhanmalak1161]

Thanks, enjoyed watching. Could you, if possible, do a set up on cutting inner spiral groove (for oil passage in bearings etc).

[@jonsworkshop]

Hi Yuchol, found your channel through Ades Workshop (subbed). Nice job, they are a nice design. Jon.

[@woodscreekworkshop9939]

Thanks Jon!

[@joeduda8507]

They seem to look and work very well thanks for the video

[@woodscreekworkshop9939]

Thanks Joseph

[@jasonbell5905]

Great video, nice job

[@RagsdaleCreek]

As always awesome work. Have a blessed weekend!

[@woodscreekworkshop9939]

Thanks Anthony

[@JohnDoe-ot7wv]

Two opposite flats on the shaft would be helpful to tighten the setscrew at the upper end. Good job Sir!

[@woodscreekworkshop9939]

John Doe I decided against that because I wanted the ability to adjust the rake. Thanks.

[@DolezalPetr]

new fav channel

[@woodscreekworkshop9939]

Thanks and welcome

[@julianlockyear8824]

Thanks for sharing.

[@michaelrosenlof1084]

Great Job Yuchol-Well Done ✅

[@woodscreekworkshop9939]

Thanks Michael

[@AmateurRedneckWorkshop]

Great results there. A good useful project.

[@woodscreekworkshop9939]

Thanks Harold

[@metalworksmachineshop]

I just got one of those Universal heads Narex VHU 2-1/8 holds 1" bars.

[@woodscreekworkshop9939]

Very nice, stout!

[@Machine_NZ]

Hi Yuchol, great result and nicely made. Regards Kevin(MachineNZ)

[@woodscreekworkshop9939]

Thanks. I used W1 tool steel for the main body

[@nadam35]

love this project

[@woodscreekworkshop9939]

nadam35 thank you so much

[@DK-vx1zc]

very nice ! Thanks for sharing.. You are inspiring us

[@woodscreekworkshop9939]

I just want people to enjoy their shop time 😁

[@bulletproofpepper2]

Sweet thanks for sharing.

[@metalshopwithtroy5755]

Great video love your work

[@woodscreekworkshop9939]

thanks Troy

[@JamesDedmon]

Good job

[@metalmanglingmariner]

Some nice work there

[@woodscreekworkshop9939]

Thanks Roy!

[@andyZ3500s]

The boring bars turned out great Yuchol. Doesn't the Narex tooling come from Taiwan? Those boring/facing heads sure are a nice tool. Incredible quality.

[@woodscreekworkshop9939]

No, Narex comes from Czechoslovakia, very high quality

[@kurtrudolph5723]

What keyless chucks do you have on your lathe and mill? Great videos.

[@woodscreekworkshop9939]

Both are Precision Matthews, very nice

[@kurtrudolph5723]

@@woodscreekworkshop9939 Thank you for answering and the videos. I was thinking those looked really nice also.

[@kurtrudolph5723]

What size? 3/4

[@willemvantsant7416]

Lot better than the cheap soft shank boring bars. When you try to remove them the set screw has made a deep imprint in the shank.

[@woodscreekworkshop9939]

Yeah. I’ve got some of those too. I will eventually phase them out

[@jeffkurtock6726]

Why are they hardened? For that matter, why O1 steel?

[@woodscreekworkshop9939]

Jeff Kurtock you want boring bars to be as rigid has possible without making them glass hard (would shatter). Rigidity allows consistent dimensions on parts you’re machining.

[@jeffkurtock6726]

@@woodscreekworkshop9939 Rigidity is measured by elastic modulus. Elastic modulus doesn't change with hardening. www.researchgate.net/post/Will_the_Youngs_Modulus_E_value_change_with_heat_treatment . I would expect that hardening boring bars will make them, well, harder. But it shouldn't make them more rigid, or stiffer.

[@swanvalleymachineshop]

Hey great job . Cheers .

[@woodscreekworkshop9939]

Max Grant ,The Swan Valley Machine Shop. Thanks Max!

[@andrewevans1658]

Great video!! Very informative!

[@woodscreekworkshop9939]

Thanks Andrew

[@metalworksmachineshop]

Nicely done

[@woodscreekworkshop9939]

Thanks!

[@nascar20970]

Great job and video.

[@woodscreekworkshop9939]

Thank you!

[@Bigwingrider1800]

I JUST USE 2 FLUTE HS END MILLS. WITH PROPER RELIEF WORKS GREAT...

[@HH-Machining]

What model narex head? I have 2 narex vhu 36 in really good condition and one narex vhu80 which is also in good condition but definately more used than the 36's. I really like them, last time i did internal snap ring grooves, radial feed is nice to have :) Really nice boring bars!

[@woodscreekworkshop9939]

It is Vhu 1-3/8

[@sharkrivermachine]

nicely done.

[@woodscreekworkshop9939]

Thanks Steven

[@OldIronMachineWorks]

Very nice Yuchol

[@woodscreekworkshop9939]

Thank you!

[@hilltopmachineworks2131]

Came out nice.

[@woodscreekworkshop9939]

Thanks Tom, I am happy with the result. Concrete yet? 😒

[@hilltopmachineworks2131]

Woods Creek Workshop Are you kidding? Raining right now and going to rain everyday next week. This is just crazy.

[@woodscreekworkshop9939]

Hill Top Machine Works cursed, cursed I say

[@matsworld9386]

Hey Yuchol - long time no video! Hope you're doing well, cheers!

[@woodscreekworkshop9939]

Thanks, you too!

[@mikemraz8569]

And it could be 1/4 28 tpi. So you have a bigger allen wrench

[@Rustinox]

And it works.

[@woodscreekworkshop9939]

Rustinox yes and definitely the highlight of this project 😁

[@MegaRiffraff]

👍🏻👍🏻👍🏻

[@jacewalton6677]

nice

[@woodscreekworkshop9939]

Jace Walton thanks Jace

[@mikemraz8569]

An sae set screw would be better

[@woodscreekworkshop9939]

You can always find something better, but if what you got does the job...

[@grntitan1]

…......but but Yuchol, you didn't use your "wise'. Stefan always holds parts in his "wise"...… LOL I'm joking. Stefan is one of my favs and he does very good with English despite it not being his primary.

[@woodscreekworkshop9939]

It is possible he is saying it correctly and we are not. I know, mind blown 😀

[@wmcrash]

You stole the features? It looks like you stole the whole notebook! BTW, well done!

[@woodscreekworkshop9939]

Don’t tell him, he may not notice

[@harlech2]

Hopefully this video isn't too 'boring'. *Shows himself out*

[@woodscreekworkshop9939]

Only mildly...

[@taunteratwill1787]

Yes very boring. :-)

[@RockingJOffroad]

Nice boring video! No humor???😝

[@hairyfro]

This one was boring.

[@hilltopmachineworks2131]

Yeah Yuchol got all serious on us. No dancing girls or face pop ups.

[@CXensation]

Rather boring video I'd say ...

[@woodscreekworkshop9939]

CXensation I know. I yawned the entire time I made that video 😁