Product Name: Brazed Diamond Marble Hole Opener Quartz Stone Granite Tile Hole Reamer Angle Grinder Drill Bit Port: M14 thread (note that the size of the angle grinder thread needs to be M14) Specifications: 6mm-16mm Grain size: 6-16mm(40 ) Specifications: 6 or 8 or 10 or 12 or 14 or 16mm (commonly used) Surface treatment: electrophoretic blackening Packing: single plastic tube Weight: as shown in the specification diagram Process: brazing Material: Brazing emery and high carbon steel matrix Features: For ordinary diamond hole saws, the durability, high temperature resistance, and use range of this brazed hole saw have been greatly increased. 6-14mm (no lubricating wax above 16mm) has built-in solid lubricating wax, which can gradually melt into wax water during drilling, thereby effectively reducing the temperature to lubricate and protect the drill bit, reducing high temperature burnout and increasing the use frequency and life of the product. Convenient to use on products that cannot be drilled with water. (PS: It can be directly used for dry drilling, but the service life of adding water to cool down when drilling is still better) Scope of application: glass or ceramic or marble or concrete or vitrified tile or microcrystalline stone or granite or quartz stone or full tile, etc.- Matching model: angle grinder with M14 thread Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.