BRSCHNITT 1/2/3pcs 20-68mm Vacuum Brazed Triangle Shank Drill Bit with Postion Drill Bit for Ceramic Tile Marble Granite

Item : BRSCHNITT 1/2/3pcs 20-68mm Vacuum Brazed Triangle Shank Drill Bit with Postion Drill Bit for Ceramic Tile Marble GraniteColor: BlueQuantity: 1/2/3pcsSpecification:Diameter: 20mm, 25mm, 28mm,32mm, 35mm, 45mm, 50mm, 65mm, 68mm;Diamond Height:10mm; Total Length: 65mm; Triangle Shank , handle diameter 10mm (That is very important for your machine); Diamond Grit #40/45Application: For drilling granite & marble, tile/ceramic,artificial Stone.....Feature:  1. Three sided handle design, more stable clamping and drilling, less debris, less wear on materials and better finishing effect;                2. 10mm diamond at the top of the bit, which is densely arranged to make the drilling faster and longer service life;                3. Dry drilling without water; 6-10mm internal wax cooling, which extend the life of drill bits;                 4. 20mm and above, with 4pcs slots on the top of the drill bit to improve the working efficiency of the hole drill;                5. Vacuum bra