TopHomer 1PCS Diamond Holesaw, Diamond Coated Core Hole Saw Drill Bit Tile Hole Cutter Set - 40mm, Compatible with Glass, Ceramics, Porcelain, Ceramic Tile, Marble

• 17 Sizes, Meet All Your Needs -- Size diameter included 4mm 5mm 6mm, 8mm, 10mm, 12mm, 16mm, 18mm, 20mm, 22mm, 25mm, 28mm, 30mm, 32mm, 35mm, 40mm, 45mm.
• SUPER MATERRIAL: These diamond drill bits made of high-speed steel that is durable and have a long service life, which are high quality and good performance that excellent for making clean and accurate hole.
• SHARP&SMOOTH CUT: Coated with high quality diamond, the diamond hole saw creates a high precision, smooth cut with no broken edges. Reduced drill speeds, low drill pressure and increased use of water lubrication will extend drill bit life considerably.
• WIDELY USE: Suitable for use in drill hole on glass, marble, tile, blocks jars, fiberglass porcelain tile ceramic, slate marble, granite light Stone etc. Will work with all electric drill and impact drill.
• NOTE: These bits is installed on a professional drill or electric drill, bench drill. Rpm 800-1000 rpm or so, you must add water cooling holes during operation.

Description: Feature: 100% Brand new and High quality. Easy to use, high quality. good performance, long life. Excellent for making clean and accurate hole on glass , tile and marble. The perfect tool for professional or DIY use. Can be used with a standard electric drill. When cutting hard materials, it is important to ensure the cutter is kept cool. to avoid damage to the material being drilled and premature wear of the cutter. Always use lubrication (water ), otherwise the diamond core drill will burn. This diamond coated core drill bit removes a complete circle from glass,marble,tiles,granite, ceramic or other. Specifications: Colour: Silver Material: Steel Type: Drill Bits & Chucks Sub-Type: Tile/ Glass Features: Good performance and long life Hole Diameter:4MM, 5MM, 6MM, 8MM, 10MM, 12MM, 16MM, 18MM, 20MM, 22MM, 25MM,28MM, 30MM, 32MM, 35MM, 40MM, 45MM Package: 1 × Holes Saw Drill Bit