3/4 in, Wire Dia.
Knot Wire End Brush,Shank Size 1/4" 0.02 in, Bristle Length 1 in, Grit Not Applicable, Overall Length 2 7/8 in, 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 22,000 RPM End Brush, Product Type End Brush, Quick Change System Not Applicable, Bristle Type Standard Twist Knot Wire, Bristle Material Carbon Steel, Brush Dia..