Flared End Brush Product Type Flared End Brush Quick Change System Not Applicable Bristle Type Crimped Wire Bristle Material Carbon Steel Brush Dia 2 in Wire Dia 0.01 in Bristle Length 1 1/8 in Grit Not Applicable Overall Length 2 1/8 in Compatible Tool Type Straight Grinder Drill Press Pencil Grinder Color Not Applicable Connector Type Shank Connector Size 1/4 in Operating Speed - Maximum 15 000 RPM Series Gemini