Features: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 screwďĽŚnut 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.
Specification:Brand new and high quality. Material: HSS Drill 4241. Black chamfer drill body material: steel 45. Shank: 2.5mm dia hex shank.