Perfect for installing light fixtures, power outlets, or shelving systems, it delivers clean, accurate holes in tough without chipping or cracking Engineered with steel, this multi functional triangular drill bit 30% enhanced hardness, drilling through glass, ceramic, , and brick wall for professional Minimizes resistance and prevents slippage, while the triangular shank ensures secure grip in electric drills for drilling Ideal for contractors, and engineers, this hole opener withstanding heavy duty use across construction and home renovation projects Featuring compatibility with hand drills, cordless drills, and bench drills, this wear resistant hole opener reduces replacement frequency by 50% through grinding technology, Manufacturer: Whoasyst