Set of 6 countersink bits, HSS 90° countersink bit, countersink bit, cylindrical countersink bit, screw-type tool for DIY, wood, metal, PVC, 6.3/8, 3/10, 4/12, 4/16.5/20.5 mm

Material: The countersink bits are made of high-speed steel. 90-degree angle on the tip for clean and precise milling. The cutting edge is hardened and sharpened for extra sharpness.

6-Piece Countersink Drill Bit Set: This fluted countersink drill bit set is available in 6 different diameters: 6.3 mm, 8.3 mm, 10.4 mm, 12.4 mm, 16.5 mm, and 20.5 mm. It meets your various size requirements.

One-Piece Design: The conical surface treatment can be performed in a single pass, and both sides of the drilled hole can be quickly cut and chamfered in seconds.

Widely Used: It can process all kinds of soft or ferrous metals, suitable for thin iron sheets, insulation sheets, aluminum sheets, PVC sheets, wood sheets, etc.

Application: Countersunk drill bits are ideal for drilling 90-degree holes in wood and for countersunk screws and fasteners. Suitable for DIY, home, and general construction/engineering.

Note: All data is measured manually; please allow for a 1-3 cm error due to differences in lighting and color.