SHDIATOOL Diamond Dry Drill Bits 10pcs 6mm for Marble Concrete Ceramic Tile Vaccum Brazed Hole Saw Round Shank

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. Specification:  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 Application:  For drilling granite, marble, masonry, concrete, ceramic tile, glass, hard plastic..... Feature:  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.