Zoom icon Click to expand Tap to zoom Chevron down icon Chevron down icon Unmounted 3/32" Arbor Hole Brushes - 9/16" Brush Diameter by Grobet Sale $12.05 | / SKU 16-657 soft - $12.05 stiff - $11.67 soft stiff Degree of Stiffness Chevron down icon 1 2 3 4 5 6 7 8 9 10+ Quantity Chevron down icon Quantity Add to cart Spinner icon Notify me when back in stock Email address Email me when available Unmounted 3/32" Arbor Hole Brushes - 9/16" Brush Diameter Use stiff bristles for cleaning and soft bristles for polishing. Mount on mandrels. Sold by the dozen. Available in 2 degrees of bristle hardness: soft or stiff bristle.