Description Package: M42 bimetal hole opener. Diameter: 110mm, depth 34mm, shank diameter 10mm, center drill: 6*68mm. Struc Material: steel fast; ultra-high hardness, high cost performance, high performance and quality assurance, not easy to break, hardened serrations, long wear resistance and long service life. Detailed features: pointed tooth shape , low vibration, quick balance when opening holes, making the operation more stable; Forward and backward inclined tooth shape design, fast cutting speed, compared with ordinary hole saws with equal teeth, it is not easy to jam or pull the teeth. Convenient and practical: it can be adapted to most tools, such as hand drills, bench drills, rechargeable drills, etc. The handle design can effectively play the role of anti-slip and stability. Wide range of uses: it is suitable for punching metal profiles such as sheet iron, cast iron, aluminum alloy , plasterboard, wood panel, plastic, synthetic resin, etc. Product Description Material: high speed steel Size: diameter approx: 110mm depth approx: 34mm shank diameter approx: 10mm center drill approx: 6*68mm Color: Shown as picture. Feature: Features detailed: pointed tooth shape, low vibration, quick balance when opening holes, making the operation more stable; Forward and backward inclined tooth shape design, fast cutting speed, compared with ordinary hole saws with equal teeth, it is not easy to jam or pull the teeth. Convenient and Convenient: It can be fitted to most tools, such as hand drills, bench drills, rechargeable drills, etc. The handle design can effectively play the role of anti-slip and stability. Wide range of uses: It is suitable for punching metal profiles such as sheet iron, cast iron, aluminum alloy , plasterboard, wood panel, plastic, synthetic resin, etc. Note: 1, It is not recommended to drill steel plates for bi-metal hole openers, and it is forbidden to drill tempered glass. 2, when using, you can drill holes while adding water to improve the service life of the hole opener and prevent the product from breakage. 3, Due to the manual measurement, please allow a slight deviation of 1-2cm. 4, Due to the different monitors, there may be a slight color difference between the picture and the actual product, please refer to the actual product. Package Content: 1 x M42 Bi-Metal Hole Opener Sold by Briday Store