JC1511 Step Drill Bit
Size:4-22mm,73x22x22mm,shank 8mm.
Number of steps:10.
Point thinning according to DIN 1412C.
Thinning point in cutting edge.
Spiral grooved.
118°pointed angel.
90” stepped angle.
High performance steel.
Size:4-22mm,73x22x22mm,shank 8mm.
Number of steps:10.
Point thinning according to DIN 1412C.
Thinning point in cutting edge.
Spiral grooved.
118°pointed angel.
90” stepped angle.
High performance steel.