Features 1、The opening of this hole opener is neat, smooth, without broken edges, and has low cutting resistance. 2、Adopting a large chip removal port design, which is particularly beneficial for chip removal, and can improve work efficiency. 3、Has large torsion, can effectively prevent slippage, the clamping is more stable, and the handle is not easy to break. 4、Using sophisticated production technology, has excellent performance, high bearing capacity, and fast opening speed. 5、Can be used to drill hard and brittle materials such as glass, ceramic tiles, stone, floor tiles, marble, etc. Specification Item Type: Hole Openers Material: Adamas Uses: Can Be Used to Drill Hard and Brittle Materials for Glass, Ceramic Tiles, Stone, Floor Tiles, Marble and Other Materials Length: Approx. 66mm / 2.6in Maximum Aperture: 6mm / 0.2in Shank Type: Triangular Shank Package List 3 x Hole Openers