1. What you got: 2pcs Diameter 8mm/5/16inch, 5/8-11 connection, Total height 62MM, Max working depth 35mm, Diamond height 10MM
2. Appcation: Dry/wet drilling for porcelain tile marble stone masonry brick normal stone
3. Better Performance: High quality Diamond Grain provide fast and smooth drilling
4. Durablity: The inside of the drill bit is filled with dense cooling wax for cooling the diamond bits
5. Machine: With 5/8-Inch-11 Thread, Used on angle grinder,very easy to operate Notice: if you want to fit our hole saws on drills or other machine, you need an adapter, such as SDS,Hex, Round Plus Shank