jug choke tooling

[CoyoteJoe]

What is the length of the cut that is made by this tool?

The length of cut depends on the depth of cut. There is a taper at both ends of the cut, from zero down to full depth and back out to zero so the deeper it enters the longer the area of contact. That may be 4 1/2"-5" on a full choke, considerably shorter for improved cylinder.

 

[CoyoteJoe]

Joe

Good post, thanks. I do so appreciate your posts.

What determines the depth of cut? Paper shims?



Tinker2

The tool must be able to enter the bore without cutting, have its' cutter elevated to firm contact while cutting, then retract to leave the bore without further cutting. The thin "L" shaped piece of flat stock, which I call "the adjuster", is tapered in thickness for most of its' length. That sits under the cutter, between the cutter and the backing. When it is removed the cutter retracts to enter or be removed from the bore. Once the tool in in place and cutting is to begin, I insert the L shape adjuster to raise the cutter until I feel a firm resistance, then rotating the tool will begin to cut. After just a few rotations the cutter will be loaded up with cuttings and to remove and clean it I just slip out the adjuster. After cleaning the chips off the tool and oiling the bore, the tool is slipped back into place, the adjuster reinserted to the point of firm resistance, the tool is cranked another dozen or so turns, then again removed and cleaned. As the recess deepens the adjuster moves farther inward to keep the cutter cutting. I've never counted how many times I remove and clean the tool and oil the bore but many, many times. :haha:

 

[Tinker2]

Joe

Thanks, even I understand now.

I wonder if that would work on my .360 smooth bore that I want?


Thanks again
Tinker2