Item Type: Countersink drill bit + wrench Color: Black Material: Carbon steel Size: 6# Countersink Drill Bit Diameter: Approx. 56mm / 2.2in, Width: Approx. 9mm / 0.35in, Round Shank: Approx. 6mm / 0.2in, Tap Length: Approx. 20mm / 0.8in 8# Countersink Drill Bit Diameter: Approx. 59mm / 2.3in, Width: Approx. 11mm / 0.4in, Round Shank: Approx. 6mm / 0.2in, Tap Length: Approx. 23mm / 0.9in 10# Countersink Drill Bit Diameter: Approx. 63mm / 2.5in, Width: Approx. 12mm / 0.5in, Round Shank: Approx. 6mm / 0.2in, Tap Length: Approx. 27.5mm / 1.1in 12# Countersink Drill Bit Diameter: Approx. 69mm / 2.7in, Width: Approx. 12mm / 0.5in, Round Shank: Approx. 6mm / 0.2in, Tap Length: Approx. 32mm / 1.3in Wrench: Length: Approx. 49mm / 1.9in, Width: Approx. 18mm / 0.7in, Thickness: Approx. 2.5mm / 0.1in Application: For woodworking drilling 1Standard round valve rod allows quick replacement, easy to use in the practical life. 2The length of the drill can be adjusted according to different lengths of screws, just adjust the screws. 3Pre-drilled holes and countersunk drill bits are used to drive the screw flush with the surface of the material or drive the deep hole of the screw head to the hole under the surface. 4Made of materials carbon steel in high quality, countersink drill bit is entitled with high adoptability according to strict rule. 5After many inspections before leaving the factory, countersink drill bit and wrench quality is guaranteed, you can use it with confidence.For manual measurement, please allow 1-3mm error. Thank you for your understanding.1 x Countersink Drill Bit 6#1 x Countersink Drill Bit 8#1 x Countersink Drill Bit 10#1 x Countersink Drill Bit 12#1 x Wrench