Packaging: M42 bi-metal hole opener. Diameter: 110 mm, depth 34 mm, shank diameter, 10 mm, center drill: 6*68 mm. Material: Made of high-speed steel; high hardness, high cost-effectiveness, high performance and quality assurance, not easy to break, hardened saw teeth, long wear resistance and long service life. Detailed features: sharp tooth shape, low vibration, fast balance when drilling holes, making the operation more stable; Forward and backward inclined tooth shape design, high cutting speed, compared with ordinary hole saws with equal teeth, it is not easy to get stuck or pull the teeth. Convenient and practical: It can be adapted to most tools, such as hand drills, bench drills, cordless drills, etc. The handle design can effectively play the role of anti-slip and stability. Wide range of applications: It is suitable for perforating metal profiles such as iron plates, cast iron, aluminum alloys, plasterboard, wood panels, plastics, plastic resin, etc. Product description Material: High-speed steel Size: Approximate diameter: 110 mm Approximate depth: 34 mm approx. 10 mm center drill approx: 6*68 mm Color: Shown as picture. Function: Detailed features: Sharp tooth shape, low vibration, fast balance when drilling holes, making the operation more stable; Forward and backward inclined tooth shape design, high cutting speed, compared with ordinary hole saws with equal teeth, it is not easy to get stuck or pull the teeth. Convenient and practical: It can be adapted to most tools, such as hand drills, bench drills, cordless drills, etc. The handle design can effectively play the role of anti-slip and stability. Wide range of applications: It is suitable for punching metal profiles such as iron plates, cast iron, aluminum alloys, plasterboard, wood panels, plastics, 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 life of the hole opener and prevent the product from breaking. 3, Due to manual measurement. Please allow a slight deviation of 1-2 cm. p>4. Due to the difference in monitors, there may be a slight color difference between the picture and the actual product. Please refer to the actual product. . Package included: 1 x M42 Bi-metal hole opener