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

$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

$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

$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

$22.31

Part #: 83084 (6x5/8-11 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

ADVANTAGE TYPE 1 HIGH SPEED CUT OFF WHEELS

$4.30

Part #: 31183 (14x1/8x1 )

ADVANTAGE**For use with high speed gas powered saws. Three ...

CRIMPED CUP BRUSH

$18.54

Part #: 83106 (5x5/8-11 CRIMPED CUP BRUSH)

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

PFX TYPE 27 WHEELS FOR PIPELINE GRINDING/CUTTING/NOTCHING

$2.61

Part #: 80116 (6x1/8x7/8 )

Premium General Purpose Pipeline grinding wheels**PFX Pipeli...

CRIMPED TYPE END BRUSHES

$3.47

Part #: 50820 (1x1/4 CRIMPED END BRUSH)

Crimped end brushes for polishing, cleaning drill holes & li...

MOUNTED FLAP WHEELS

$2.82

Part #: 31522 (3x1x1/4 60 ADV)

ADVANTAGE FLAP WHEELS are used when low price and good value...

GREEN ZIRCONIA TYPE R - PLASTIC BUTTON**SAND-LOC QUICK CHANGE DISCS

$0.61

Part #: 12949 (2" 36 GREEN )

High Performance Green Zirconia with a grinding aid for fast...

KNOT CONICAL BRUSH

$9.14

Part #: 83062 (4-1/2x5/8-11 KNOT CONICAL BR)

Special flared shape that enables the brush to be used flat ...

TYPE R BLACK SUPER STRIP DISCS

$1.64

Part #: 30231 (3)

Heavy Duty discs engineered to rapidly clean welds, remove s...

© 2026 Republic Abrasives All Rights Reserved