1 1/2 in, Wire Dia.
,Shank 0..Cup Brush,Crimped,2 dia.012 in, Bristle Length 5/8 in, Grit Not Applicable, Compatible Tool Type Straight Grinder, Drill Press, Impact Driver, Pencil Grinder, Color Not Applicable, Primary Material Application Carbon Steel, Cast Iron, Wood, Connector Type Round Shank, Connector Size 1/4 in, Operating Speed - Maximum 13,000 RPM, Series Gemini Cup Brush, Product Type Cup Brush, Quick Change System Not Applicable, Bristle Type Crimped Wire, Bristle Material Carbon Steel, Brush Dia.