22Pcs Hinge Drill Bit Self Centering Lock Hole Drilling Puncher Tool Set for Window DoorItem Type: Hinge Drill BitProduct Material: Aluminum AlloySpecifications: 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 punchShank Diameter: 1/4in Hex HandleHole 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 screws7/64in: The diameter of the hole is about 2.8mm 0.1in, using about 3 ~ 3.5mm 0.1 ~ 0.1in self-tapping screws9/64in: The diameter of the hole is about 3.5mm 0.1in, using about 4 ~ 4.5mm 0.2 ~ 0.2in self-tapping screws11/64in: The diameter of the hole is about 4.5mm 0.2in, using about 5 ~ 5.5mm 0.2 ~ 0.2in self-tapping screws5mm: The diameter of the hole is about 5mm 0.2in, using about 5.5 ~ 6mm 0.2 ~ 0.2in self-tapping screws13/64in: The diameter of the hole is about 5.1mm 0.2in, using about 5.6 ~ 6.1mm 0.2 ~ 0.2in self-tapping screws1/4in: The diameter of the hole is about 6.3mm 0.2in, using about 6.8 ~ 7.3mm 0.3 ~ 0.3in self-tapping screws