Single Spiral Brush, Product Type Single Spiral Tube Brush, Stem Style Single, Brush Material Silicon Carbide, Brush Dia. 3/8 in, Compatible Tube Outer Diameter Not Applicable, Stem Diameter 5/32 in, Brush Length 2 in, Wire Dia. 0.022 in, Overall Length 5 in, Operating Speed - Maximum 1,500 RPM, Package Quantity 10