1Pcs 660mm M10 Thread Dry Vacuum Brazed Diamond Drilling Core Bit Ceramic Tile Hole Saw Granite Marble Drill Bits(16mm) This is a single piece dry vacuum brazed diamond drilling core bit designed for fast, waterless holes in hard materials. It features a 660 mm cutting diameter range, an M10 threaded connection, and a 16 mm shank. The diamond edge is vacuum brazed for durability and consistent performance on ceramic tile, granite and marble. Key benefits Dry drilling capability: perform holes without water cooling, keeping work area cleaner and reducing setup time. Durable vacuum brazed diamond edge: designed for long life and reliable cutting across tile and stone substrates. Wide cutting range: 660 mm diameter options to cover common hole sizes for outlets, fittings, and fixtures. Secure mounting: M10 thread provides a robust connection to compatible drill chucks or adaptors. Standard shank size: 16 mm shank fits into many standard drills and holders for convenience and compatibility. Key attributes Type: drilling core bit / hole saw with vacuum brazed diamond tip Material: diamondcoated cutting edge, vacuum brazed Cutting diameter: 660 mm Shank diameter: 16 mm Thread: M10 threaded connection Application: dry drilling on ceramic tile, granite, and marble Package: 1 piece (1Pcs) Applications and use cases Drilling wall holes in ceramic tile for electrical outlets or switches during bathroom or kitchen renovations. Creating holes in granite countertops or marble surfaces for faucet installations, sinks, or plumbing fixtures. Cutting clean, precise holes in tile or stone surfaces for vents, wiring, or cable management in residential or commercial tiling projects. Notes Designed for dry use; no external water cooling required. Ensure the drill and adaptor are compatible with M10 threaded bits and the 16 mm shank size. Use appropriate safety practices and wear PPE when operating drilling tools.