9/64 3/16 11/64 Hex Quick Change Shank Countersink Tapered Drill Bits Cone Reaming Drill Bit Set Wood Woodworking Tools

Material:HSS 6542( much more better than other drills)
Model:1*9/64
          1*3/16
          1*11/64
Size:Length: 9-11cm
Package included:
3pcs* countersink drills
Description

Description:
Material:High-speed steel 6542( much more better than other drills)
Model:1*9/64
          1*3/16
          1*11/64
Size:Length: 9-11cm
Package included: 
3pcs* countersink drills

*Tapered drill with widened flutes for drilling fast, clean pilot holes and ensures tight fit for
Adjustable four-cutter counter bore cuts and clears chips quicker for fast, smooth countersinking
Counter bore attaches to flats on shank with two hex screws for a secure fit and can be adjusted