Diamond Coated Drill Bit Set 12/19pcs Porcelain Cup Saw Tile Marble Glass Granite Hole Saw Drilling Bits Power Tools Accessories

Package Included: 12 pc / 19 pcs

• Material: Carbon Steel ; Package Included: 12 pc / 19 pcs
• These diamond drill bits made of high-speed steel that is durable and have a long sevice life,which are high quality and good performance that excellent for making clean and accurate hole. Each hole is treated with smooth and accurate surface treatment,and the top oh the hole is thickened to achieve excellent cutting strength
• 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
• The diamond coated core drill bit removes a complete circle from glass, marble, tiles,granite, ceramic or other. They are perfect for drill glass, tile bottles, porcelain tile ceramic and other hard surfaces
• Special: Each hole is treated with smooth and accurate surface treatment