Diamond Finger Milling Bit Ball End, 3/4 Inch 20mm Dia Dry Core Drill Bits Vacuum Brazed Hole Saws for Enlarging Shaping Holes in Porcelain Ceramic Tile Granite Marble Stone Brick with 5/8-11 Thread - DECKRKAT, DECK-004

• Ball End Diamond Hole Enlarger Bit: Diamond Finger Milling Bit is ideal for elongating, enlarging, and shaping circular holes, draining holes in projects in bathroom or kitchen to fit tiles perfectly around faucets, shower valves and other pipes. Unique ball end bit can create pit decoration or make tapered holes High Quality: This diamond finger bit is heavily diamond coated, both sides and the end, as a result, it can grind wet or dry, no chips, scratches or bumps, make beautiful holes. recommend to do some test holes in scrap to get the feel for it Designed for Hard Materials: Work perfectly for enlarging or trimming holes in porcelain sink, limestone vanity sink top, ceramic bathroom sink, thick granite countertop, marble, stone, Faster and More Durable: when upgrade or replace the bathrooms faucets, you may find the faucets are a bit larger than the old ones, using this Diamond Finger Milling Bit to enlarge the hole, you can save a lot of trouble and time Easy to Use: 1 piece of 3/4 inch (20mm) Vacuum Brazed Diamond finger bit, hole depth up to 50mm, with 5/8-11 Thread to fit most angle grinders. please take your time and do not force the bit. Use goggles, ear plugs, and vacuum with it