Check the listing for details. Diamond Beveling Chamfer Finger Milling Bit 3-1/4" Cone Enlarging Hole Tile 82mm. Color: Black, Condition: New. Listed at 52.99 USD. BTBLBITS Diamond chamfer bit Diameter 3-1/4" (82mm) 5/8-11 thread Package Content: 1 Pack Diamond chamfer bit diameter 3-1/4" (82mm) 5/8-11 thread Fits on Angle Grinder Dia：3-1/4" (82mm) Threads：5/8"-11 Grit：#80 Degree：60 High：59mm Color：Black【Size】Shank: 5/8-11 Thread,Chamfer Angle:Top Angle 60 degree,Chamfer Diameter: 3-1/4"(82mm),Total length: 59mm,Working Depth:50mm【Function】This diamond countersink drill bits is designed to enlarge, shape and trim the EXISTING HOLES in porcelain tile, tiles, marble, ceramic, granite, etc.【Used for】Very useful to improve the edge finishing of exposed holes.Diamond bit for a smooth, high-end finish.Bevel Ease chamfers and stress relieves rough holes in ceramic and porcelain tiles.【Choice】Just one standard core bit plus this versatile milling bit,you are able to create many different hole sizes 1-1/16" (27mm) to 3-1/4" (82mm) , without needing to buy several different core bits【Material】This chamfer bit is made of premium diamond and durable metal.High hardness and strength. It uses these high quality raw materials to ensure more effective cleaning and trimming.Bring a smooth,beautiful hole finish.It fits on 5/8"-11 threads angle grinder and can be used with water or not, very easy to operate.