(08-18-2014, 06:29 AM)PixMan Wrote: Hard to see what style insert that is from the end view, but given the width of it I'd have to guess its a TNMG322 (ANSI designation) or TNMG160308 (ISO designation.) There are some inserts available for those type of bars that are made specifically for boring operations, as the cutting characteristics are so different than when turning an O.D.The inserts are ISO DCMT 070204
Used it today and it worked fine. However as it only 8 mm it is a bit springy (to be expected) but it will start off in a small hole!
Will_D, proud to be a member of MetalworkingFun Forum since Aug 2014.