Square Turning Insert, Square, 1/2 in, SPG, 1/32 inMfr # SPG 422 Item Square Turning Insert Insert Shape Square Insert Style SPG Inscribed Circle 1 2 in Chip Breaker No Workpiece Compatibility Cast Iron (K), Hardened (H), Nonferrous (N), Stainless (M), Steel (P), Super Alloy (S) Insert Application Medium No. of Edges 4 Hardened (H) Compatibility Yes Coating Uncoated Relief Angle 11 Degrees Non Ferrous (N) Compatibility Yes Super Alloy (S) Compatibility Yes Stainless (M) Compatibility Yes Cast Iron (K)