Maxdrill T38 drop center rock drill bit Product Show Product Despcription Dimensions D Flushing hole(mm) Buttons(mm) Angle Class Part no. mm in Front No Size Gauge No Size Front No Size Gauge No Size 64 2 1/2 3*7 1*6 4*10 6*11 35° M 3064T3810D 64 2 1/2 3*7 1*6 3*11 6*12 35° H ...