3 Pcs Large HSS Steel Step Cone Drill Titanium Bit Set Hole Cutter 4-12/20/32mm
Material: High-speed Steel (HSS 4241). Shape of Shank : Triangular. Type: Drill Bit. 1 x Step Drill Bit 4-12mm. 1 x Step Drill Bit 4-20mm. 1 x Step Drill Bit 4-32mm. Shape: Straight. Color: Gold.