KYOCERA Indexable End Mill, High Performance Square Shoulder Standard Shank, Series: M-Four MEW, 1-1/4 in Cutting Dia, 3-3/4 in Overall Length, 0.393 in Maximum Depth of Cut, LOMU/LOGT Insert, 4 Inserts, Insert Compatibility: LOMU 1004..ER-GH, LOMU 1004..ER-GM, LOMU 1004..ER-SM, 1.469 in Head Length, 1 in Shank Dia, Straight Shank, 2.281 in Shank Length, ANSI Code: MEW 1250-W100-10-4T, ISO Code: MEW 1250-W100-10-4T, SB-3065TRP Insert Gage Screw, 90 deg Lead Angle, Yes, Steel