7Pc Wood Screw Drill/Countersink Drill/Countersink Countersink Drill/7-Piece Set/Woodworking Drill/Cone Hole Drill

Material: Stainless steel Model: 7-piece set of wood screw drills in bulk, 7-piece set of wood screw drills with wooden box Name: 7PC wood screw drill combination Specifications: 5 #, 6 #, 7 #, 8 #, 9 #, 10 #, 12 # 1/8 ", 9/64", 5/32 ", 11/64", 3/16 ", 13/64", 7/32 " Packing: Plastic bag 170g/set Wooden box 265g/set Material: The drill bit is high-speed steel 4241, and the black part is 45 #steel. On the same axis, after screwing on the screw, the screw cap is located below the plane of the board, and the drill ring can be adjusted up and down! Suitable for drilling machines with chucks or joints, suitable for drilling in hard wood and wood layers