FREE SHIPPING ON ORDER SUBTOTAL OF $350.00+

Republic Abrasives Logo

KNOT CUP BRUSH

$20.61

Knot cup brushes are for heavy duty use. For preparing metal surfaces prior to painting. Removes rust, slag weld scale or concrete waste.

  • Part Number: 83081
  • Size: 6x5/8-11 KNOT CUP BRUSH
  • Weight: 3.2 lbs.
  • # Per Box: 1
  • Max RPM: 6500
  • Diameter: 6"
  • Wire Diameter: 0.014"
  • Wire Type: CARBON STEEL
  • Old Part Number: 54-488138
  • Min Order: 1
  • QTY 50+: $18.74
  • QTY 100+: $17.04

Related Products

KNOT CUP BRUSH

$7.11

Part #: 83071 (2-3/4x5/8-11 KNOT CUP BRUSH)

Knot cup brushes are for heavy duty use. For preparing meta...

KNOT CUP BRUSH

$20.61

Part #: 83082 (6x5/8-11 KNOT CUP BRUSH)

Knot cup brushes are for heavy duty use. For preparing meta...

KNOT CUP BRUSH

$16.06

Part #: 83080 (5x5/8-11 KNOT CUP BRUSH)

Knot cup brushes are for heavy duty use. For preparing meta...

KNOT CUP BRUSH

$9.14

Part #: 83074 (3-1/2x5/8-11 KNOT CUP BRUSH)

Knot cup brushes are for heavy duty use. For preparing meta...

KNOT CUP BRUSH

$8.98

Part #: 83073 (3-1/4xM14 KNOT CUP BRUSH)

Knot cup brushes are for heavy duty use. For preparing meta...

KNOT CUP BRUSH

$22.31

Part #: 83084 (6x5/8-11 KNOT CUP BRUSH)

Knot cup brushes are for heavy duty use. For preparing meta...

KNOT CUP BRUSH

$21.46

Part #: 83083 (6x5/8-11 KNOT CUP BRUSH)

Knot cup brushes are for heavy duty use. For preparing meta...

KNOT CUP BRUSH

$14.01

Part #: 83078 (4x5/8-11 KNOT CUP BRUSH)

Knot cup brushes are for heavy duty use. For preparing meta...


Customers Also Purchased

KNOT CUP BRUSH

$20.61

Part #: 83081 (6x5/8-11 KNOT CUP BRUSH)

Knot cup brushes are for heavy duty use. For preparing meta...

PFX TYPE 27 WHEELS**PFX HP**HIGH PERFORMANCE ZIRCONIA

$6.98

Part #: 80610-H (6x1/4x5/8-11 )

PFX wheels with a higher concentration of zirconia grain tha...

KNOT CUP BRUSH

$9.14

Part #: 83075 (3-1/2x5/8-11 KNOT CUP BRUSH)

Knot cup brushes are for heavy duty use. For preparing meta...

TYPE A BENCH & PEDESTAL WHEELS

$10.52

Part #: 95245 (8x1x1 A80-M )

Aluminum oxide general purpose wheels for most roughing and ...

8 pc CARBIDE BURR KIT**MOST POPULAR BURRS

$125.00

Part #: 81000 (8 PC BURR KIT)

8 piece carbide burr kit consisting of the most popular sell...

ADVANTAGE TYPE 27 WHEELS FOR GRINDING METAL

$3.61

Part #: 31303 (7x1/4x5/8-11 )

ADVANTAGE**Excellent general purpose grinding wheels designe...

CRIMPED WHEEL BRUSH

$8.29

Part #: 83146 (3x1/4 CRIMPED WHEEL BRUSH)

Crimped wheel brushes are used for the removal of rust, pain...

PFX TYPE 27 WHEELS**PFX HP**HIGH PERFORMANCE ZIRCONIA**PIPELINE AND FOUNDRY

$4.12

Part #: 80617 (4-1/2x1/8x5/8-11 )

PFX wheels for Pipeline or Foundry applications. with a hig...

© 2026 Republic Abrasives All Rights Reserved