10PCS 6/8mm Cross Hex Tile Drill Bits Set For Glass Ceramic Concrete Brick Hole Opener Carpenter Tool Triangle Bit Features: *Hex Cross Triangle Drill Bit For All Ceramic Vitrified Tile Glass Marble Granite *Exquisite and beautiful, comfortable to work *Great wear resistance *Deep groove chip removal, smoother concrete drilling *Non-slip hex shank, tight grip, does not slip Specifications: *Shank type: Hex Shank *Material: Hard Alloy *Color: Gold (Approx) *Optional model: 6mm/8mm (optional) *Direct dry drilling : ceramic, non-ceramic tiles, marble, wood, plastic, red brick *Need to add water: glass, vitrified tiles, granite, all-ceramic tiles Instructions: 1. Less than 24V lithium electric drill is not recommended, the force is too weak to drill 2. Granite, vitrified tiles, and all-ceramic tiles need to be cooled by water 3. Position must be changed when meeting the steel bar during wall punching as the steel bar will damage the cutting edge Package Included: 10PCS Drill Bit _x000D_