FREE SHIPPING ON ORDER SUBTOTAL OF $350.00+

Republic Abrasives Logo

KNOT CUP BRUSH

$9.14

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: 83074
  • Size: 3-1/2x5/8-11 KNOT CUP BRUSH
  • Weight: 1.2 lbs.
  • # Per Box: 1
  • Max RPM: 14000
  • Diameter: 3-1/2"
  • Wire Diameter: 0.014"
  • Wire Type: CARBON STEEL
  • Old Part Number: 54-485138
  • Min Order: 1
  • QTY 50+: $8.31
  • QTY 100+: $7.56

Related Products

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

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

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

KNOT CUP BRUSH

$20.61

Part #: 83081 (6x5/8-11 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

$8.51

Part #: 83070 (2-3/4x5/8-11 KNOT CUP BRUSH)

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

KNOT CUP BRUSH

$11.05

Part #: 83072 (2-3/4x5/8-11 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...


Customers Also Purchased

TYPE A BENCH & PEDESTAL WHEELS

$9.35

Part #: 95236 (7x1x1 A60-M )

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

STANDARD BACKING PADS FOR RESIN FIBRE DISCS

$7.94

Part #: 92612 (4-1/2x5/8-11 )

Smooth face pad that is ideal for all sanding applications. ...

TURBO BACKING PADS FOR RESIN FIBRE DISCS

$9.54

Part #: 92604 (4-1/2x5/8-11 )

Turbo pads have similar features as the rubber turbo pad, bu...

MOUNTED FLAP WHEELS

$2.24

Part #: 93502 (1x1x1/4 80 )

Flap Wheels are used for blending and finishing all types of...

PFX TYPE 27 WHEELS FOR GRINDING METAL

$1.68

Part #: 80108 (4-1/2x1/4x7/8 )

Premium General Purpose grinding wheels**PFX wheels grind fa...

CRIMPED WHEEL BRUSH

$5.52

Part #: 83145 (3x1/4 CRIMPED WHEEL BRUSH)

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

KNOT TYPE END BRUSHES

$5.33

Part #: 50710 (1-1/8x1/4 KNOT END BRUSH)

Knot End Brushes for aggressive cleaning rust, scale & coati...

PFX CERAMIC FLAP DISCS

$6.39

Part #: 96874 (4-1/2x7/8 60 CERAMIC )

German made ceramic material designed for stainless steel jo...

© 2026 Republic Abrasives All Rights Reserved