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: 564in x 2, 764in x 2, 964in x 2, 1164in, 5mm 0.2in(approx.) , 1364in, 14in, each corresponding a twist drill bit, and a yellow center punch Shank Diameter: 14in Hex Handle Hole Size: (Approx. ) 564in: The diameter of the hole is about 2mm 0.1in, using about 2.2 ~ 2.8mm 0.1 ~ 0.1in self-tapping screws 764in: The diameter of the hole is about 2.8mm 0.1in, using about 3 ~ 3.5mm 0.1 ~ 0.1in self-tapping screws 964in: The diameter of the hole is about 3.5mm 0.1in, using about 4 ~ 4.5mm 0.2 ~ 0.2in self-tapping screws 1164in: 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 1364in: The diameter of the hole is about 5.1mm 0.2in, using about 5.6 ~ 6.1mm 0.2 ~ 0.2in self-tapping screws 14in: The diameter of the hole is about 6.3mm 0.2in, using about 6.8 ~ 7.3mm 0.3 ~ 0.3in self-tapping screws