High Speed Steel Tapered Countersink Bit Set Adjustable Collars Wood Pilot Hole Set Woodworking

Label:Yes [Three Functional Parts] The bit includes a pilot drill, a countersink cutter, and an adjustable countersink collar that slides up and down for precise depth control. [Flush Countersinking] Designed for countersunk fasteners, this bit sinks holes so bolt or screw heads sit flush with or slightly below the material surface. [Single Pass Efficiency] Pilot holes, through holes, and countersinks can be completed in one continuous step, making it ideal for common screw sizes. [Adjustable Depth Collars] The included collars let you set the pilot hole depth and countersink depth to match different woodworking needs. [Deburring and Smoothing] These countersinks clear away sharp edges and burrs left after drilling or tapping, helping to improve surface finish and safety. [Wide Application] Suitable for woodworking tasks where a flat screw finish is needed; the tapered design offers stronger grip than standard drill bits.

Item Type: Tapered Countersink Bit Screw Set Drill Bit Material: High Speed Steel Color: Multicolor Wooden Box Material: Solids Wood Screw specifications #5, #6, #7, #8, #9, #10, #12 SizeDrill Size(Approx.)Chamfer Size(Approx.) 5#3.18mm / 1/8in9.5mm / 0.37in 6#3.58mm / 9/64in9.5mm / 0.37in 7#3.97mm / 5/32in9.5mm / 0.37in 8#4.37mm / 11/64in9.5mm / 0.37in 9#4.76mm / 3/16in9.5mm / 0.37in 10#5.15mm / 13/64in12.5mm / 0.50in 12#5.56mm / 7/32in12.5mm / 0.50in Package List: 7 x Drill Bit 1 x Wrench 1 x Wooden Box