Description: Small-sized abrasive cylinders internally reinforced with cotton cloth.Main features and benefits: Compact design allows you to work even in very small spaces. Perfect adherence to backing and top- quality abrasive ensure long life. They should be used on expanders as with the same size as the spiral band.Recommended applications: Finishing of moulded parts, internal surfaces of cylinders, pipes and drilled parts in general.Work surfaces: Standard steel, stainless steel, nonferrous materials and alloys, plastic materials.SB0100 - 25mm x 25mm, P50, 15000 RPM.SB0157 - 45mm x 30mm, P60, 8500 RPM.