Descriptions:1. Designed for drilling 6mm diameter holes.2. Nickel-plated hole saw drill bit with a diamond dust coating offers superior performance and cutting strength.3. Cut clean and round holes to a depth of approximately 5mm.4. Excellent for making clean and accurate hole on glass, tile, porcelain, marble and other fragile materials.5. Always use lubrication (water), otherwise the diamond coated drill bit will burn.6. Start your hole diagonally, make a round trace and then hold drill straight.7. Works better with an electric drill (Excluding in this item). Specifications:Product Name: Glass Hole SawMaterial: MetalBody Coating: Nickel PlatedTip Coating: Diamond PlatedCutting Diameter: 6mm / 0.24-inchDrilling Depth: 5mm / 0.2-inchShank Diameter: 5.5mm / 0.
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