Features 75MM OPENING: The diamond hole saw bit has an opening specification of 75mm and a standard size, which ensures stable and accurate drilling. DIAMOND COATING: The hole saw drill bit has a diamond coating that ensures a sharp cutting edge and greatly improves drilling efficiency. PLATED: The diamond hole saw has a plated surface, which has good corrosion and oxidation resistance, extending its service life. APPLICABLE MATERIAL: This hole opener is suitable for drilling fiberglass, ceramic, ceramic tile, limestone, slate, marble and light stone, etc. CHIP REMOVAL HOLE: Diamond hole saws with through holes facilitate the entry of cooling water and the removal of chips from the hole. Specification: Item Type: Hole Saw Bit Material: Diamond Specification: Approx. 75mm/3 inch Usage: Suitable for drilling glass, ceramics, tiles, limestone, slate, marble, light stone, fiberglass, etc. Package list: 1 x Hole Saw Bit 1 x Storage Box Note: Not suitable for drilling in tempered glass, plastic and wood. Package List 1 x Hole Saw Bit 1 x Storage Box