Sandvik Coromant TCMT 3(2.5)2-XR GC15 Carbide Insert, 0.032" Nose Radius, Positive Basic Shape 7&deg; Chip Breaker (Pack of 10) CoroTurn 107 Carbide Insert CoroTurn 107 Turning Insert XR chipbreaker is designed for Roughing applications For machining Stainless, HRSA; ISO M15, S15 applications Screw Clamping, 40-60 countersink on one side