FREE SHIPPING ON ORDER SUBTOTAL OF $350.00+

Republic Abrasives Logo

KNOT CUP BRUSH

$12.40

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: 83077
  • Size: 4x5/8-11 KNOT CUP BRUSH
  • Weight: 1.6 lbs.
  • # Per Box: 1
  • Max RPM: 9000
  • Diameter: 4"
  • Wire Diameter: 0.020"
  • Wire Type: CARBON STEEL
  • Old Part Number: 54-486218
  • Min Order: 1
  • QTY 50+: $11.27
  • QTY 100+: $10.25

Related Products

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 #: 83074 (3-1/2x5/8-11 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...

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 #: 83082 (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...


Customers Also Purchased

SM-5 DOUBLE CUT CARBIDE BURR

$15.67

Part #: 81309 (1/2x7/8x1/4)

This double cut cone carbide burr is perfect for exterior fi...

KNOT CUP BRUSH

$14.01

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

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

SB-1 DOUBLE CUT CARBIDE BURR

$7.26

Part #: 81064 (1/4x5/8x1/4)

This double cut cylindrical end cut carbide burr is perfect ...

HAND SCRATCH BRUSHES

$2.41

Part #: 50207 (4x19 LONG HANDLE BRUSH)

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

SC-1 ALUMINUM CUT CARBIDE BURR

$7.41

Part #: 81109 (1/4x5/8x1/4)

This aluminum cut cylindrical radius end carbide burr is per...

KNOT CUP BRUSH

$20.61

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

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

HIGH PERFORMANCE PLUS HD/JUMBO FLAP DISCS

$4.42

Part #: 76402 (4-1/2x7/8 40 HD ZIRCONIA)

European poly/cotton cloth flaps +25% more flaps! An incred...

HAND SCRATCH BRUSHES

$1.92

Part #: 50203 (3x19 LONG HANDLE BRUSH)

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

© 2026 Republic Abrasives All Rights Reserved