Pack-12 Supra MK Medium 1" Natural Bristle Brushes-Unmounted With 1/8" Hole

Supra MK 1" Medium Natural Bristle Brushes are premium unmounted miniature brushes designed for professional jewelers and metalsmiths who demand consistent performance on detailed finishing work. These brushes are Made in the USA with solid steel ring construction, ensuring long-lasting durability through extended use. Brush filaments are permanently anchored in the solid steel ring and uniformly distributed for even wear across the bristle face — delivering reliable, repeatable results on flat, curved, small, and hard-to-reach surfaces.

Each brush is made with natural animal hair in a medium stiffness, offering a balance between flexibility and cutting action. The 1" diameter and unmounted format make these brushes versatile for use with compatible hub adapters and screw mandrels (sold separately). Sold by the dozen.

Features

• Premium natural animal hair bristles in medium stiffness
• Solid steel ring construction for durability and long service life
• Filaments permanently anchored and uniformly distributed for even wear
• Effective on flat, curved, small, and hard-to-reach surfaces
• Made in the USA
• Unmounted design — requires mandrel or hub adapter for use
• 1/8" diameter center hole for use with compatible hub adapters or screw mandrels
• Sold in packs of 12

Specifications

Notes

• The 1/8" center hole is designed for use with hub adapters 147.257 or 147.259, or with screw mandrels using the correct 1/8" diameter screws 143.160 or 143.162.
• Using a 3/32" diameter screw mandrel with the 1/8" hole results in a sloppy fit — not recommended.
• Natural bristle brushes with 3/32" diameter holes are also available — see part number 116.657MAIN.
• Supra does not manufacture extra soft bristle brushes. Extra soft bristle brushes are made in China.

California Prop 65 Warning:
Cancer and Reproductive Harm. www.P65warnings.ca.gov.