68mm diamond hole saw with pilot drill, hollow diamond core drill bit for glass, tile, ceramic, marble, granite

Superior Quality: Our glass hole saw with positioning pilot drill is made of high-quality diamond, with a solid hardened steel body and a nickel-plated surface that ensures high hardness, rust protection, corrosion protection, and long-lasting robustness.
Design with Precise Positioning Pilot Drill: Each tile hole saw is equipped with a removable positioning pilot drill. The pilot drill bit's cutting head is also coated with a diamond layer, making it sharper and more durable, and effectively securing the hole saw's position for quick hole cutting.
Size: Cutting diameter: 68 mm - Cutting depth: 30 mm - Overall length: 70 mm - Triangular shank diameter: 9.5 mm.
Clean and neat holes: These tile hole saws with a thicker diamond layer create a cleaner groove edge and can cut precise, chip-free, flat-bottomed holes on smooth surfaces such as ceramic tiles, glass, marble, granite, terrazzo, etc. (max. cutting depth 30 mm).
Easy to use: Operation is simple and requires no special guide tools. Use the tile hole saw with the pilot drill to position the hole. Remove the pilot drill after positioning, then cut the hole directly with the tile hole saw. Note: Remember to add water or coolant during the cutting process to prolong the life of the diamond hole saw.