Flared End Brush, Product Type Flared End Brush, Quick Change System Not Applicable, Bristle Type Crimped Wire, Bristle Material Carbon Steel, Brush Dia. 1 1/2 in, Wire Dia. 0.006 in, Bristle Length 7/8 in, Grit Not Applicable, Overall Length 3 in, Compatible Tool Type Die Grinder, Drill, Impact Driver, Pencil Grinder, Straight Grinder, Color Silver, Primary Material Application Carbon Steel, Connector Type Round Shank, Connector Size 1/4 in, Operating Speed – Maximum 20,000 RPM