Quality selection. These diamond drill bits are made of high speed steel which is high quality and durable. There is a nickel coated body that resists corrosion and has a long service life.
Smooth cutting. The thick diamond dust coating on the top provides superior cutting strength for creating a highly accurate, smooth cut with no broken edges. Reduced drill speed, lower drill pressure and increased use of water lubrication will greatly extend the life of the drill.
Multiple applications. Diamond drill bits can remove a full 8mm diameter hole in glass, tile, granite, and ceramics. In addition to making holes for glass, hole saws can be used for tile bottles, block jars, fiberglass, porcelain tiles, ceramics, slate, marble, and light stone. Not suitable for concrete or for depths greater than about 1/2 inch.
Use: Drill holes in glass, tile, marble, granite, etc. with electric drills, cordless screwdrivers and power drills. Ideal for hobby and DIY work.
Tips for use : Smooth cutting : When working carefully, spray the cutting area with water. When using the glass drill, sprinkle water on the drill bit to prevent it from breaking due to high heat caused by high speed rotation.