FSR Ultra Shear replacement cutters and screws

[mrGeeze]

Trying to Help a new turner get started. He purchased a lathe (Nova DVR) with tools from a turner who passed (RIP).
Nice stuff. Good deal for him, fair for the widow. Quality.
Anyway, he has a couple of FSR carbide cutters tools. I wanted to help him purchase "alternative" cutters.
I have done so at Amazon with my EzWood tools. No problem.

We purchased some 16mm cutters that came with screws. The cutter seems to fit but the screws do not.
I remember reading that this is sometimes a challenge using 3rd party cutters.
Screws don't fit.

If anyone owns/uses the FSR Ultra Shear cutter and knows my solution, I would appreciate the help.
While I am an old school Bill Grumbine bowl gouge sort of turner, he would like simpler with carbide cutters.
We will get to the grinder and wolverine jig in good time.

thanks,

 

[Bill Alston]

It can be a challenge to get the right screws sometimes. The screws in the picture are all the same thread size (M4 in this case) but the difference in head shape/size is obvious. I’ve now found a supplier of both inserts and screws here in the UK so it shouldn’t be a problem for me going forward. Hopefully you can find someone over there in the US? Good luck with your quest.

 

[Earl McLain]

Arizona Carbide (azcarbide.com) has a good cross-reference chart. I don't know that range of tools well enough, but Ron shows "Full Size Round" as an 8-32 screw (if that's what "FSR" means). In the full size listings, the diamond shows 4-40.