22Pcs Hinge Drill Bit Self Centering Lock Hole Drilling Puncher Tool Set for Window Door Item Type: Hinge Drill Bit Product Material: Aluminum Alloy Specifications: 5/64in x 2, 7/64in x 2, 9/64in x 2, 11/64in, 5mm / 0.2in(approx.) , 13/64in, 1/4in, each corresponding a twist drill bit, and a yellow center punch Shank Diameter: 1/4in Hex Handle Hole Size: (Approx. ) 5/64in: The diameter of the hole is about 2mm / 0.1in, using about 2.2 ~ 2.8mm / 0.1 ~ 0.1in self-tapping screws 7/64in: The diameter of the hole is about 2.8mm / 0.1in, using about 3 ~ 3.5mm / 0.1 ~ 0.1in self-tapping screws 9/64in: The diameter of the hole is about 3.5mm / 0.1in, using about 4 ~ 4.5mm / 0.2 ~ 0.2in self-tapping screws 11/64in: The diameter of the hole is about 4.5mm / 0.2in, using about 5 ~ 5.5mm / 0.2 ~ 0.2in self-tapping screws 5mm: The diameter of the hole is about 5mm / 0.2in, using about 5.5 ~ 6mm / 0.2 ~ 0.2in self-tapping screws 13/64in: The diameter of the hole is about 5.1mm / 0.2in, using about 5.6 ~ 6.1mm / 0.2 ~ 0.2in self-tapping screws 1/4in: The diameter of the hole is about 6.3mm / 0.2in, using about 6.8 ~ 7.3mm / 0.3 ~ 0.3in self-tapping screws