31 Pcs Set Contains: 4 Pcs Indexable Boring Bars (2 Pcs 1/2'' (602 & 8-2) 1 Pc 5/8'', 1 Pc 3/4''), 10 Pcs Gold Coated TCMT 21.51 Inserts, 10 Pcs-Gold Coated TCMT 32.52 Inserts, 4 Torx Screws, 2 Pc Torx Wrench, 1 Fitted Case
Small hole capacity: minimum of .430''
Negative 3 degree end cutting edge for 7 degree positive triangle clearance
Bar is made of heat treated, precision ground alloy steel
Positive insert allows for heavier cuts, the insert is securely held with a torx screw to reduce tool slipping