Frankfurt Abrasive Brush are used in hand and automatic grinding machine . Fickert Abrasive Brush ,are used in granite automatic grinding machine. Diam 110mm Snail Lock Abrasive Brush are used in side grinding machine and step retreading machine. Diam 130mm Snail Lock Abrasive Brush are used in side grinding machine and step retreading machine. Diam 100mm for flex ,round brush differentiate 14mm(MA14) and 16mm(MA16) with inside diameter and are used hand grinding machine . Diam 200mm Abrasive Brush are used in hand grinding machine. 250mm Abrasive Brush .,this kind of brush is used in stone industrial polishing lines