Diamond beveling chamfer bit designed to enlarge, shape and/or round bevel existing holes Diamond beveling chamfer bit is made of premium diamond and durable metal with high hardness and strength for effective cleaning and trimmingWith just one standard diamond core drill bit listed below and this diamond countersink milling bit without needing to buy several different sizes hole saw bits 3/4 Inch Diamond Core Drill Bit 1 Inch Diamond Core Drill Bit 1-1/8 Inch Diamond Core Drill Bit 1-1/4 Inch Diamond Core Drill Bit 1-3/8 Inch Diamond Core Drill Bit Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews 4.5 out of 5 stars 524 4.5 out of 5 stars 524 4.5 out of 5 stars 524 4.5 out of 5 stars 524 4.5 out of 5 stars 524 Price $20.99$20.99 $22.99$22.99 $23.99$23.99 $23.99$23.99 $24.99$24.99 5/8-11 Thread to 3/8'' Hex Shank Adatper ✓ ✓ ✓ ✓ ✓ User Tips Connect to an Angle Grinder Fits most angle grinders with 5/8-11 thread and most electric or hand drills with a 3/8” hex shank adapter Predrill a hole in the tile Designed to enlarge, shape and/or round bevel existing holes in Porcelain, Hard Ceramic, Granite, Tiles and Marble Shapping holes with Diamond bit The diamond beveling chamfer bit can be used to reduce the risk of cracking with standard and large format tiles You get smooth and beautiful holes No need to buy many sizes of tile hole drill bits, as with just one size from the set users can enlarge small holes to larger sizes with smoother holes. Features Introducing our Diamond Beveling Chamfer Bit for Hole Trimming Cleaning Enlarging Have an old faucet that broke and need to install a new one which requires a larger hole in your countertop? No worries! Our diamond countersink drill bit is perfect for enlarging, shaping or rounding existing holes in porcelain, hard ceramic, granite tiles, and marble for your kitchen or bathroom countertop, sink, and more.Our Diamond Chamfer Bit makes hole modification easy by working with both angle grinders and electric drills. Please note that the Chamfer Bit works perfectly in beveling holes, cleaning, and reinforcing chipped or rough borders. Product can be used for dry or wet grinding.