KYOCERA Indexable End Mill, High Performance Square Shoulder Standard Shank, Series: M-Four MEW, 1-1/2 in Cutting Dia, 4-1/8 in Overall Length, 0.59 in Maximum Depth of Cut, LOMU/LOGT Insert, 4 Inserts, Insert Compatibility: LOMU 1505..ER-GH, LOMU 1505..ER-GM, LOMU 1505..ER-SM, 2.069 in Head Length, 1-1/4 in Shank Dia, Straight Shank, 2.056 in Shank Length, ANSI Code: MEW 1500-W125-15-4T, ISO Code: MEW 1500-W125-15-4T, SB-4090TRP Insert Gage Screw, 90 deg Lead Angle, Yes, Steel