Boring Head Shank Question

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dan1msp

Plastic

Joined

Jun 2, 2019

• Apr 11, 2020

• #1

I have a boring head from mesa tools (looks like they went out of business a few years ago) and the shank looks home made. I looked it up and I saw one for sale. It had a different shank i.e. lightly rusted and longer than the one I have. I want to put an R8 on it and I'm wondering if anyone here has one of these or knows if the shank is removable. Any info is appreciated!

Thanks in advance!

 

MetalCarnage

Stainless

Joined

Apr 24, 2011

Location

Nebraska

• Apr 11, 2020

• #2

Is this the same Mesa Tools? BORING HEAD ACCESSORIES | mesatool

-Ron

 

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dan1msp

Plastic

Joined

Jun 2, 2019

• Apr 11, 2020

• #3

It’s a different Mesa Tools from Oceanside, CA. That one is in Oregon.

Thanks!

 

4GSR

Diamond

Joined

Jan 25, 2005

Location

Victoria, Texas, USA

• Apr 11, 2020

• #4

I have a MESA boring head here in my shop. It uses the same shank the one that Criterion uses on their boring head. I believe the thread is 1.500-18UN. And yes, it is a threaded shank. The thread is right handed. Ken

 

M

Milland

Diamond

Joined

Jul 6, 2006

Location

Hillsboro, New Hampshire

• Apr 11, 2020

• #5

It sure looks like there's a seam between the shank section and the body, so if you're feeling bold you can make a clamping block of some sort for the body and then go to town on the shank with a pipe wrench.

But don't hurt yourself or wreck anything. This posting will self-destruct in 5, 4, 3, ...

 

4GSR

Diamond

Joined

Jan 25, 2005

Location

Victoria, Texas, USA

• Apr 11, 2020

• #6

I've had to cut off the flange of the shank on a couple of boring heads in my past, to get them to break loose. Even had one we broke loose with a 36" pipe wrench [t was so tight. Totally uncalled for on a boring head!

 

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dan1msp

Plastic

Joined

Jun 2, 2019

• Apr 11, 2020

• #7

Thanks for the tips. I hope I don’t need a 36” pipe wrench, but we’ll see. I could end up with another tool.

 

M

Milland

Diamond

Joined

Jul 6, 2006

Location

Hillsboro, New Hampshire

• Apr 11, 2020

• #8

I know it sounds stupid, but if you use a pipe wrench on the part be careful to "plan" where the swing of the handle will go if it suddenly gives way. More than one guy has lost teeth or otherwise gotten hurt when all that energy is released or the part comes out of the vise.

 

D

dan1msp

Plastic

Joined

Jun 2, 2019

• Apr 11, 2020

• #9

Thanks for the heads up.

 

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bjmh46

Aluminum

Joined

Nov 30, 2007

Location

Ohio, USA

• Apr 12, 2020

• #10

4GSR said:

I have a MESA boring head here in my shop. It uses the same shank the one that Criterion uses on their boring head. I believe the thread is 1.500-18UN. And yes, it is a threaded shank. The thread is right handed. Ken

Click to expand...

I have a 2 inch Mesa head and it has a 7/8-20 threaded back.
Bob

 

4GSR

Diamond

Joined

Jan 25, 2005

Location

Victoria, Texas, USA

• Apr 12, 2020

• #11

bjmh46 said:

I have a 2 inch Mesa head and it has a 7/8-20 threaded back.
Bob

Click to expand...

Ha! It would help to zoom in for a better look at the poster's picture. That certainly look like a 2" head. My wrong. Mine is the 3" version.
Regardless, it takes the same shank as the Criterion uses. Ken