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

$14.01

Part #: 83078 (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

$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

$8.98

Part #: 83073 (3-1/4xM14 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 #: 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

$12.40

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

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


Customers Also Purchased

KNOT WHEEL BRUSH*STANDARD TWIST

$7.74

Part #: 83024 (4x7/8;1/2;3/8 KNOT WHL BRUSH)

Knot wheel brushes are used to remove weld scale, rust, slag...

CRIMPED CUP BRUSH

$6.46

Part #: 83101 (2-3/4x5/8-11 CRIMPED CUP BR)

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

EXTRA CUT TYPE 1 CUTTING WHEELS

$0.75

Part #: 88321 (4-1/2x.040x7/8)

Fast cutting Type-1 grinding wheels. Designed to cut stainle...

ADVANTAGE UTILITY FLAP DISCS

$3.12

Part #: 76605 (4-1/2x7/8 Z80 UTILITY )

Our original design for the price conscious customers. Good...

PFX TYPE 17 GRINDING CONES

$8.17

Part #: 95631 (2x3x5/8-11 )

PFX grinding rocks for fast grinding and long life.

PFX TYPE 27 WHEELS FOR GRINDING STAINLESS STEEL

$3.31

Part #: 80137 (4-1/2x1/4x5/8-11)

PFX Wheels that are designed to work with hard to grind mate...

PFX TYPE 27 WHEELS FOR CUTTING STAINLESS STEEL

$2.86

Part #: 80193-H (4-1/2x.045x5/8-11 )

Fast cutting, long lasting PFX Cutting wheels. Designed to ...

HIGH PERFORMANCE BLUE FLAP DISCS

$3.90

Part #: 96104 (4-1/2x7/8 60 ZIRCONIA )

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

© 2026 Republic Abrasives All Rights Reserved