Features: High quality diamond Imported diamond powder/full particles/strong grinding power Brazing process sharpening Stable quality: high efficiency/more wear-resistant/dry and wet use 45/60/100# Brazed Flat Grinding Head Abrasive Polishing Stone Marble Quartz Granite Cobblestone Grind Sharp Efficient Name:Brazed grinding head Material: Diamond Color: Gold Size:2 inch 50mm Grit:45#/60#/100# Application: marble, granite, terrazzo, quartz,concrete curing floor High manganese steel matrix integrated molding One-piece molding is not easy to break/safer to use M14 thread interface Comes with M14 screw interface/can be used directly after installation Instructions for use: Choose a suitable small coarser grinding head to start working, and end with a large finer grinding head. In order to achieve a good grinding effect, it is recommended not to skip the number. The smaller the mesh number, the rougher the polishing surface, the faster the polishing, and the rougher the polishing effect; The larger the mesh number, the finer the polishing surface, and the slower the polishing, the finer the polishing effect. Package Contents: 1 x Brazed grinding head Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.