The twist drill bit is made of high-speed steel with quenched treatment, and the limit ring and wrench are made of carbon steel, providing high hardness, wear resistance and good cutting performance. The surface of the tool set is oxidized to effectively prevent corrosion and rust, extending its service life.
The hole drill bit adopts a two-stage diameter design, which helps to complete the processing of multiple holes of different diameters. Using step-by-step cutting can reduce cutting resistance and improve stability and work efficiency.
Use the matching wrench to help the drilling limit ring lock securely in any position on the drill bit, helping to protect the drill bit as well as control the depth of the drilled hole.
Can be used with manual pocket hole jig system, or alone. Suitable for cordless electric drills, handheld electric drills, impact drills, desktop drills, etc. Widely used in drilling and positioning holes in steel, wood, aluminum alloy, copper, plastic, cast iron, doors, window, etc. Cannot be used on ceramic tiles, vitrified bricks, wall concrete, glass porcelain, etc.