Item: Vaccum Brazed Diamond Dry Drilling Bits for stone masonry....
Quantity: 10pcs,8pcs 6mm diamond core bit plus 2pcs 6mm carbide round shank drill bit.
1.diamond core bit :Round Shank,diameter 6mm, diamond length 8mm, total length 65mm
2.carbide drill bit:Round Shank,diameter 6mm, diamond length 12mm, total length 68mm
For drilling granite, marble, masonry, concrete, ceramic tile, glass, hard plastic.....
1. Wax inside for cooling,dry drilling without water.
2. Vacuum Brazed technology,high efficiency and durability.
3. High-quality diamond grains, fast and Smooth drilling.