Diamond Hole Saw Set, Diamond Core Drill Bit for Tile/Glass/Marble (6mm-50mm, 11pcs)

General descriptionThis Diamond Hole Saw Set includes 11 pieces of diamond core drill bits ranging from 6mm to 50mm, designed for professional use on materials such as porcelain, glass, marble, ceramic, stone, and granite. The special brazed diamond design ensures clean and precise holes, making it ideal for various DIY and home improvement projects.Technical specificationsMaterial: Carbon SteelSet includes: 6mm, 8mm, 10mm, 12mm, 16mm, 20mm, 22mm, 25mm, 30mm, 38mm, 50mmShank diameter for 6mm bit: 6mmShank diameter for 8mm to 25mm bits: 8mmShank diameter for other bits: 10mmUsageAlways use water for lubrication to prevent overheating and burning of the diamond core bit.Make a semicircular mark on the material and hold the drill straight while drilling.Use reduced drilling speeds and low pressure to extend the life of the drill bits.As a rule of thumb, smaller diameter bits can be drilled at higher speeds, while harder materials require slower speeds.Other informationTips: If you feel burning, reduce speed or pressure.Never let the drill bit dry out during use.