Ideal for professional woodworkers, electricians, and DIYer enthusiasts requiring precisions drilling / cutting / grinding operations across ceramics, stone surfaces, and construction materials Engineered with built in cooling wax for 30% faster heat dissipation, this hexagonal shank brazed hole enables efficient dry drilling on tiles, glass, and marble without water, featuring diamonds coated abrasive segments for 20% sharper cutting edges and extended durability The reinforced diamonds grit and universally 1 / 4 " hexagonal shank design ensures seamless compatibility with 95% of power drills while maintaining compact portability in its shock resistant PVC case for job site mobility Perfect for bathroom renovations, kitchen backsplash installations, or workshop projects where multi materials drilling and edges finishing demand a single versatile tool Combining drilling, grinding, and polishing functions in brazed diamonds hole, this solution eliminates separate tool purchases while 40% faster workflow efficiency for contractors and hobbyists alike, Manufacturer: ERRORY