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

Part # 116.651 39 In Stock Weight -- lb -- g
Current price $15.90
Volume pricing
Total qty Discount Per unit You save
1 – 2 $15.90
3 – 4 5% off $15.10 $0.80
5 – 9 10% off $14.31 $1.59
10 + 12% off $13.99 $1.91
Add 2 more for 5% off, saves another $0.80 each.

Pack Size Options

Sold in packs. See Product Description for quantity.

The Supra MK 1" Soft Natural Bristle Brushes are premium unmounted miniature brushes crafted for professional jewelers and metalsmiths who demand consistent, reliable performance. Sold in packs of 12, these 1-inch brushes are Made in the USA with solid steel ring construction engineered for durability and long service life. Brush filaments are permanently anchored in the solid steel ring and uniformly distributed to ensure even wear across the entire brush face — delivering predictable, repeatable results on every use.

These soft natural bristle brushes excel on flat, curved, small, and hard-to-reach surfaces, making them a go-to choice for detail polishing and finishing work. The natural animal hair filaments provide a gentle yet effective action suited to delicate or intricate workpieces.

Each brush features a 1/8" diameter center hole 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. Note: Using these brushes with thinner 3/32" diameter screw mandrels will result in a sloppy fit. Otto Frei also carries Supra natural bristle brushes with 3/32" diameter holes if that size better suits your setup.

*Supra does not manufacture extra soft bristle brushes. Extra soft bristle brushes are made in China.

Features

  • Premium natural animal hair bristle construction
  • Solid steel ring for exceptional durability
  • Filaments permanently anchored and uniformly distributed for even wear
  • Ideal for flat, curved, small, and hard-to-reach surfaces
  • Made in the USA
  • Sold in a pack of 12

Specifications

Brush Diameter 1 inch
Bristle Type Soft natural animal hair
Center Hole Diameter 1/8"
Construction Solid steel ring
Maximum Operating Speed 25,000 RPM
Mount Type Unmounted
Pack Quantity 12
Origin Made in the USA

Notes

  • Compatible hole size is 1/8"; use with hub adapters 147.257 or 147.259, or screw mandrels 143.160 or 143.162.
  • Using these brushes with 3/32" diameter screw mandrels will produce a sloppy fit — not recommended.
  • Supra also offers these brushes in Medium and Stiff bristle grades.
  • Otto Frei carries Supra natural bristle brushes with 3/32" diameter holes as an alternative.
  • Supra does not produce extra soft bristle brushes. Extra soft options are manufactured in China.
California Prop 65 Warning California Prop 65 Warning:
Cancer and Reproductive Harm. www.P65warnings.ca.gov.
Brand
Supra
Part #
116.651
Type
Brushes
Dimensions
6 in x 2 in x 0.5 in
Brush Diameter
1 inch
Bristle Type
Soft natural animal hair
Center Hole Diameter
1/8"
Construction
Solid steel ring
Maximum Operating Speed
25,000 RPM
Mount Type
Unmounted
Pack Quantity
12