FREE SHIPPING ON ORDER SUBTOTAL OF $350.00+

Republic Abrasives Logo

KNOT CUP BRUSH

$8.51

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: 83070
  • Size: 2-3/4x5/8-11 KNOT CUP BRUSH
  • Weight: 0.65 lbs.
  • # Per Box: 1
  • Max RPM: 14000
  • Diameter: 2-3/4"
  • Wire Diameter: 0.014"
  • Wire Type: CARBON STEEL
  • Old Part Number: 54-482118
  • Min Order: 1
  • QTY 50+: $7.74
  • QTY 100+: $7.04

Related Products

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

$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

$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

$21.46

Part #: 83083 (6x5/8-11 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

$20.61

Part #: 83081 (6x5/8-11 KNOT CUP BRUSH)

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

KNOT CUP BRUSH

$24.39

Part #: 83079 (4x5/8-11 KNOT CUP BRUSH)

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


Customers Also Purchased

CUT OFF WHEEL ADAPTERS for wheels with 1/4" arbor hole

$6.99

Part #: 95126 (1/4 x 1/4 (M-22))

Black oxide coated cut off wheel adapters 1/4x1/4**for wheel...

PFX TYPE 18 GRINDING PLUG

$8.17

Part #: 95632 (2x3x5/8-11 )

PFX grinding rocks for fast grinding and long life.

ADVANTAGE STRINGER BEAD BRUSHES

$16.21

Part #: 50315 (6x5/8-11 ADV STRINGER BEAD BRUSH)

ADVANTAGE quality stainless steel brushes engineered for the...

PFX TYPE 27 WHEELS FOR GRINDING METAL

$2.83

Part #: 80107 (4-1/2x1/4x5/8-11 )

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

PFX ULTRA TYPE 27 WHEELS

$2.08

Part #: 80578 (4-1/2x.045x7/8 )

SUPER PREMIUM PFX WHEELS**ULTRA**Manufactured on "STATE OF T...

ADVANTAGE HD/JUMBO FLAP DISCS

$3.79

Part #: 77102 (4-1/2x7/8 Z40 HD )

BIG BROTHER to our ADVANTAGE UTILITY flap discs. 25% more z...

KNOT WHEEL BRUSH*STANDARD TWIST

$11.55

Part #: 83029 (4x5/8-11 KNOT WHEEL BRUSH)

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

PFX TYPE 18R GRINDING PLUG

$8.17

Part #: 95633 (2x3x5/8-11 )

PFX grinding rocks for fast grinding and long life.

© 2026 Republic Abrasives All Rights Reserved