These Supra MK 3/4" Soft miniature unmounted natural bristle brushes are the premium natural bristle brush on the market. Made in Soft, Medium and Stiff, these brushes are Made in the USA with solid steel ring construction for durability. Brush filaments are permanently anchored in the solid steel ring and uniformly distributed for even wear. Great for flat curved small and hard to reach surfaces. Made with natural animal hair. Maximum operating speed: 25,000 rpm.
The natural bristle brushes have 1/8" diameter holes for use with the hub adapters 147.257 or 147.259 and screw mandrels with the correct 1/8" diameter screws 143.160 or 143.162. Using this hole size with thinner 3/32" diameter screw mandrels makes for a sloppy fit. We also sell natural bristle brushes with 3/32" diameter holes.
Sold by the dozen
*Supra does not make extra soft bristle brushes. Extra soft bristle brushes are made in China.