Diameter (D): 4-4.5-5-6 mm / Shank (S): 1 / 4 Inch / 6-Point;Only one rotation stopper and one counterbore for four different drilling diameters.;Cutting edge geometry for clean and tear-free screw holes.;Nut geometry ensures perfect chipping removal.

• ENT High-Speed Steel (HSS) Decking Drill Set Shank 1 / 4 Inch / 6-Point Bit Capacity

ENT High-Speed Steel (HSS) Decking Drill Set Shank 1 / 4 Inch / 6-Point Bit CapacityENT