DT DIATOOL 2pcs Diamond Core Bit Diameter 10 35mm Milling Chamfer Integrated for Enlarging Polishing Holes on Porcelain Ceramic Granite Marble Countertop M14 Thread

Multiple functions such as drilling, reaming, grinding, chamfering and trimming. It can drill holes and then enlarge, chamfer, grind and shape the formed holes; Also can repair the hole contour and finish. Just with one tool, save much work time. M14 Thread; total length 87mm; work length 77mm; diamond drill bit diameter 10mm; finger bit diameter 35mm. Use the drill bit part of the head to drill the hole, and then use the chamfer part of the middle to enlarge the hole, which can easily enlarge the 10mm holes to 35mm; if you still need to continue to enlarge the hole, you can continue to use the finger bit part of the tail end to grind the inner wall of the hole. It is recommended that you draw your work lines before you ream the holes. Easy to operate; Recommended RPM: 6000. Max RPM: 11000. If you want to mount the product on a hand drill, you need to purchase a separate hexagonal shank or sds-plus adapter. Do not use impact or hammer mode when using the adapter to connect to other drill equipment. Dry or wet use. Used for processing ceramic tiles, porcelain tiles, marble, artificial stone, granite and other materials.