Hammers, Chisels, Jackhammers -Quick Release Diamond Hole Saw Core Drill Bit For Stone Ceramic Glass 10mm Highlights Generic Brand Quick Release Diamond Hole Saw Drill Bit core set for stone ceramic glass 10mm Description: Brand new and high quality, easy to use, good performance and long service life Coarse grit diamond, ideal for marble, granite and tiles Excellent for making clean holes and accurate on granite, marble, stone, shells, tiles and glass etc. Water or other coolant is recommended to prolong bit life. Diamond coating optimizes performance and maintains a sharper edge than carbide or bi-blade hole saws Size Chart: Shank Diameter: approx. 6mm/0.23inch 6mm Punch Diameter: 6mm/0.24inch; Overall Length: 68mm 8mm Punch Diameter: 8mm / 0.31inch; Overall Length: 80mm/3.15inch 10mm Punch Diameter: 10mm/0.39inch; Total length: 80mm/3.15inch 12mm Punch diameter: 12mm/0.47inch; Total length: 80mm/3.15inch 14mm Punch diameter: 14mm/0.55inch; Total length: 80mm Package includes: 1 piece quick release diamond drill bit