FREE SHIPPING ON ORDER SUBTOTAL OF $350.00+

Republic Abrasives Logo

KNOT CUP BRUSH

$14.01

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: 83078
  • Size: 4x5/8-11 KNOT CUP BRUSH
  • Weight: 1.6 lbs.
  • # Per Box: 1
  • Max RPM: 9000
  • Diameter: 4"
  • Wire Diameter: 0.023"
  • Wire Type: CARBON STEEL
  • Old Part Number: 54-486018
  • Min Order: 1
  • QTY 50+: $12.74
  • QTY 100+: $11.58

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

$37.00

Part #: 83085 (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

$20.61

Part #: 83081 (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

$12.40

Part #: 83077 (4x5/8-11 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...


Customers Also Purchased

HAND SCRATCH BRUSHES

$0.68

Part #: 50213 (3x7 TOOTHBRUSH - STAINLESS)

Hand scratch brushes all have hard wood handles that fit com...

HIGH PERFORMANCE ZIRCONIA RESIN FIBRE SANDING DISCS

$0.73

Part #: 12726 (4-1/2x7/8 )

Our HIGH PERFORMANCE ZIRCONIA Fibre Discs are produced with ...

KNOT CUP BRUSH

$12.40

Part #: 83077 (4x5/8-11 KNOT CUP BRUSH)

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

PFX TYPE 1 CHOPSAW WHEELS

$4.69

Part #: 80202 (14x3/32x1 )

Excellent general purpose PFX chop saw wheels designed to cu...

QUICK CHANGE SURFACE CONDITIONING DISCS

$1.13

Part #: 30037 (3" MEDIUM )

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

DOUBLE ROW KNOT CUP BRUSH

$26.09

Part #: 83090 (4x5/8-11 DBL ROW KNOT CUP)

Double rows of knots are for extra heavy use. For preparin...

TYPE A BENCH & PEDESTAL WHEELS

$7.02

Part #: 95218 (6x1x1 A36-O )

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

QUICK CHANGE SURFACE CONDITIONING DISCS

$1.21

Part #: 30036 (3" COARSE )

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

© 2026 Republic Abrasives All Rights Reserved