Muzzle Radius Tool

[davec2]

I have always liked a nice smooth radius on the muzzle. However, setting up to crown a muzzle like this in the lathe is always a pain.  So I made this hand tool to quickly put a clean, smooth radius on the edge of the muzzle.  Here is a picture of one of the barrels I have with the standard 45 degree chamfer as it comes from the manufacturer

Here is the tool showing the single radius cutter insert.  The nose / pilot of the tool is 0.0005 under bore size

Here is the tool in use

And here is how the crown looks after a few rotations of the tool.  Actually, this picture looks like a chamfer and does not show how clean the radius is...I need to try to get a better picture...but the radius the tool makes matches the close up picture of the cutter insert.

 

[wulf]

Man, that is slick...thanks

 

[Britsmoothy]

Nice work :hatsoff:

B.

 

[shguns]

Very nice looking tool and results!
Would it be possible to see a picture of just the cutting bit that you made for the tool?
Thanks!

 

[robert reed]

That is cool! More pics of the tool please. :hatsoff:

 

[F.G. Ford]

Great looking tool and great looking results.
Thank you for posting!
Fred

 

[agill]

Nice! I bet that works very good. :thumbsup:

 

[davec2]

ScottH,

I'm out of town for a while. I will post a few more pictures when I get back to the shop.

Dave C

 

[Shifty]

Looks good is that a Carbide lathe cutter.

 

[davec2]

Shifty,

No...not carbide. The cutter is a piece of O-1 tool steel, but I have also made the cutter out of pieces of old power hacksaw blades.

DC