FREE SHIPPING ON ORDER SUBTOTAL OF $350.00+

Republic Abrasives Logo

KNOT CUP BRUSH

$8.98

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: 83073
  • Size: 3-1/4xM14 KNOT CUP BRUSH
    • Weight: 0.8 lbs.
  • # Per Box: 1
  • Max RPM: 14000
  • Diameter: 3-1/4"
  • Wire Diameter: 0.031"
  • Wire Type: CARBON STEEL
  • Old Part Number: 54-484317
  • Min Order: 1
  • QTY 50+: $8.16
  • QTY 100+: $7.42

Related Products

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

$20.61

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

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

KNOT CUP BRUSH

$15.71

Part #: 83076 (3-1/2x5/8-11 KNOT CUP BRUSH)

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

KNOT CUP BRUSH

$37.00

Part #: 83085 (6x5/8-11 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...

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

$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...

Customers Also Purchased

HIGH PERFORMANCE BLUE FLAP DISCS

$5.05

Part #: 96101H (4-1/2x5/8-11 36 ZIRCONIA)

Multiple layers of zirconia cloth flaps that constantly expo...

PFX TYPE 27 WHEELS FOR CUTTING METAL

$2.64

Part #: 80178-H (4-1/2x.045x5/8-11 )

Excellent PFX thin cutting wheels for all metalworking jobs!...

CRIMPED CUP BRUSH

$26.31

Part #: 83105 (4x5/8-11 CRIMPED CUP BRUSH)

Crimped cup brushes are ideal for working on large surfaces....

KNOT CUP BRUSH

$14.01

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

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

ADVANTAGE SUPER VALUE FLAP DISCS

$2.91

Part #: 76901H (4-1/2x5/8-11 Z36 )

Our lowest cost zirconia disc available. OUTPERFORMS most o...

QUICK CHANGE SURFACE CONDITIONING DISCS

$1.21

Part #: 30036 (3" COARSE )

A special reinforced, heavy duty non woven material that is ...

ADVANTAGE KNOT CONICAL BRUSHES

$7.27

Part #: 50332 (4x5/8-11 ADV KNOT CONICAL BRUSH)

ADVANTAGE quality flared knot brush that enables the brush t...

KNOT CUP BRUSH

$15.71

Part #: 83076 (3-1/2x5/8-11 KNOT CUP BRUSH)

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

© 2026 Republic Abrasives All Rights Reserved