In the stone field, abrasive brushes are widely used for grinding granite, marble, and other stones. According to different materials, there are 3 types of abrasive brushes: diamond type, silicon type, and steel wire type. Diamond type and silicon type are mainly used for grinding & polishing, while the steel wire type is usually used for cleaning the surface of stones. The typical shape can be Fickert, Frankfurt and round. This 250mm diamond abrasive brush is used for grinding granite, marble, and other stones. With a velcro back, it can be used on floor grinders for grinding concrete floor and stone floors. When equipped on automatic grinding machines, it can be used for grinding different kinds of stone slabs. Sunny Superhard Tools provides you with different types of diamond brushes for different applications. Type Shape Size Connection Type Diamond Grit Diamond Abrasive Brush Fickert Shape L140mm Flat Insert 36#/46#/60#/80#/100#/180# Frankfurt Shape   Flat Insert Round Shape φ100mm, φ130mm, φ200mm, φ250mm  100mm, 130mm: M14, 5/8"-11, Snail Type 200mm, 250mm: Quick Change Joint, Velcro Type Silicon Carbide Brush Fickert Shape L140mm Flat Insert 36#/46#/60#/80#/100# /180#/240#/320#/500# /800#/1000#/1500#/2000# Frankfurt Shape   Flat Insert Round Shape φ100mm, φ130mm, φ200mm, φ250mm  100mm, 130mm: M14, 5/8"-11, Snail Type 200mm, 250mm, 300mm: Quick Change Joint, Velcro Type Steel Type Brush Fickert Shape L140mm Flat Insert   Frankfurt Shape   Flat Insert Round Shape φ110mm, φ200mm M14, 5/8"-11, Snail Type