QWORK® Multi-Material Drill Bits Set, Tile Drill Bits for Ceramic, Tile, Concrete, Brick, Glass, Plastic and Wood 10 Pcs Set 6mm (1/4")

2) Spear pointed design strong tungsten carbide tip can easyly penetrate various material(tile, concrete, brick, glass, plastic and wood,etc) and reduces breakout 3) 10 Pcs pack of 6mm (1/4") drill bits, ideal for professional users and contractors who can carry these drill bits as their daily work tools for repeatly heavy duty drilling work. Drill bits are stored in a compact plastic square box that is easy to carry and store 4) U type slot design with fast drilling dust remove, 3-flats shank allows drill bit to be held tightly and stably in power drill 5) When drilling hard material (glass, porcelain floor tile, marble or granite), please use water for lubrication International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.