Dovetail cutter

[chatter chatter cut cut]

been wanting to make a dovetail cutter with carbide insert. what type or style # is correct for this ?

 

[MrWhoopee]

Triangular, positive rake with a hole in the center. TCMT

 

[mattthemuppet2]

TPMT might be better, has a bit more side clearance which will come in handy if you're making a cutter on the smaller side. I have to grind a little more clearance on the TCGT inserts I use in mine. Downside is they're a lot less common than TCMT/ TCGT.

 

[ChazzC]

My 3/4"Ø SHARS uses TDEW 2-1.5-1, even more clearance and tighter tolerances (has two inserts).

The one's that Randy Richards makes use TPGB (2-2-1 for 1"Ø, 3-2-1 for 1-1/4"Ø), also flat top, with bigger CS and tight tolerance on all except thickness. Not cheap, but from all reports excellent quality. He even shows you how to make your own.