BCLONG 6-50mm Diamond Core Hole Saw Drill Bits Tool Cutter + Guide Tiles Marble Glass

Features: *Please start drill at 45 Degree to surface and align to 90 Degree as hole forms *It is perfect for glass ceramic marble tile granite *Simple to operate and convenient to use *The diamond coated core drill bit removes a complete circle from glass tiles marble granite ceramic and much more *Works better with a electric drill. (not included) *Suitable for drilling holes on Glass Tiles Blocks Fiber Glass Porcelain Ceramic Slate Marble Granite Stone and Quartz. *Each diamond hole saw was processed by a smooth and exact finish that lower the incision resistance and drill pressure increase the sharpness with the use of water lubrication. *Brazed dry diamond core hole saws kit are made of diamond integral steel which is firm and durable. High anti-corrosion brazing process is adopted on the surface and the thickened diamond coating on the top provides excellent cutting strength for high-precision and smooth cutting and the drilling is stable and fast. *All brazed hole saws are treated by special high-temperature resistant process. Even without water as lubricant they can still withstand the huge heat generated by the hole saw when it rotates at high speed. Of course you can also use water as an additional coolant to extend the service life of the hole saw. *All brazed hole saws are treated by special high-temperature resistant process. Even without water as lubricant they can still withstand the huge heat generated by the hole saw when it rotates at high speed. Of course you can also use water as an additional coolant to extend the service life of the hole saw. Specifications: Hole Size: 6mm / 0.24 8mm / 0.31 10mm / 0.39 12mm / 0.47 14mm / 0.55 16mm / 0.63 18mm / 0.71 20mm / 0.79 22mm / 0.87 25mm / 0.98 26mm / 1.02 28mm / 1.1 30mm / 1.18 40mm / 1.57 50mm / 1.97 Color:AS picture shows Package Included: 10pcs Diamond Hole Saw 1pcs Hole Guide 1pcs Screwdriver