4 Pcs/set HSS Carpentry Countersink Drill Bit Set Woodworking Wood Drilling Tools,Default NO5240

Feature:

4 Pcs set includes bits for drilling pilot holes for screw sizes #6,#10,#13 ,#16.

Function: 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

Dimension:

#6, drill diameter: 3mm

#10, drill diameter: 3.5mm

#13, drill diameter: 4mm

#16, drill diameter: 4.5mm

Shank: 2.5mm dia hex shank.

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