Product Name: Vacuum Brazed Diamond Drilling Bit for Ceramic Tiles Porcelain Marble Specification: Diameter 25/28/32/35/38/50mm; Total length 65mm; Triangle Shank Diamond Height: 10mm, Handle Diameter: 10mm,Grit #40/45, Quantity: 1pc Application: For drilling tile/ceramic, granite & marble..... Feature: 1. Various specifications, ultra-high applicability, meet the needs of different materials, widely used; 3. Vacuum brazing technology precision manufacturing, improve product quality and life, cost-effective; 5. 4 U slots, steadily improve the drilling efficiency; 6. Drilling neat and sharp, fast speed, better finishing effect; NOTE : 1. Don't use the hammer mode.
2. Three-sided handle design, handle diameter 10mm, stable clamping and easy drilling;
4. Preferred 10MM high quality emery, combined with scientific matching, high hardness and dense;
2.Keep the speed above 2000RPM, higher speed provide better effect.