4pcs 1/4 inch Hex Shank HSS Countersink Drill Bit Set #6 #10 #13 #16 Sink Holes Drilled Carpenter Woodworking Chamfer Tool
Price: $ 5.28
100% brand new and high quality.
4Pcs set includes bits for drilling pilot holes for screw sizes #6,#10,#13 ,#16.
Can drill the screw holes and keep on the same axis, after screw in screw£¬nut below the board.
Apply to with a clamp or joint drilling machine, suitable for drilling in the hard wood and wood floor, machine screw for wood screw.
Material: HSS Drill 4241.
Black chamfer drill body material: steel 45.
Shank: 2.5mm diam hex shank.
Model/The corresponding bit diameter size:
Package includes: 4 x drill bits, 1 x wrench
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