HHIP 45 Degree 1" x 3/4 Shank 2-Insert Index able Chamfering end mill is used for chamfering and deburring on the top surface and the underside of the work piece, can also be used for face milling of v-shaped slots. Straight shank. 2 SPMT32 carbide inserts are not included. Minimum cutting diameter is 0. 52". Overall length is 3. 35". Cutting diameter is 0. 23". Insert screw size is M4 x 8. The inserts that fit this tool are our 6018-3251 for the SPMT 32. 51 TiN Coated or 6018-3252 for the SPMT 32. 52 TiN Coated.