Hover cursor over image to view larger picture


WARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Weiler® 4" X 5/8" - 11 Steel Knot Wire Cup Brush

Airgas Part #:WBU12316

Manufacturer Part #:12316

$52.43 /Each

Item Details

  • Weiler® 4" X 0.023" Knot Wire Cup Brush with 5/8" - 11 UNC arbor hole has solid ring construction and 10200 RPM. Carbon steel brush has 1 1/4" trim length and finds its application in heavy-duty cleaning of large metal surfaces, coating and paint removal, cleaning prior to welding, deburring and roughening surfaces. Threaded nut offers smooth and efficient operation on angle grinders to make quick work of large jobs. Single row brush has permanently fastened nut in a hexagonal hole that is clinched in place to allow quick mount. Heat-treated steel brush has high-impact brushing action with some flexibility to offer maximum cleaning action in severe applications. Brush uses superior quality steel wire rotating at a high speed to remove surface contaminants from base material without any damage or change in part dimension. Wire brush will not load when brushing soft materials like paint and similar coatings. Solid ring construction allows the brush to run smoothly even in the toughest application conditions.


  • Solid ring construction for high performance and long life
  • Provide heavy-duty brushing action with some flexibility
  • Cup brushes featuring a threaded nut are designed for smooth, efficient operation on angle grinders to make quick work of large jobs


  • ANSI B165.1


  • Removing paint and coatings
  • Cleaning rust, scale, and corrosion
  • Deburring
  • Weld prep and cleaning
  • Surface cleaning
  • Removal of slag from the edges of plasma-cut or flame-cut plates


  • Warning: Failure to observe safety precautions may result in injury

Product Attributes

Brush Type

» Cup Brush


» 4"


» 5/8" - 11

Wire Diameter

» .023"


» 10200

Wire Type

» Steel

Wire Style

» Knot Wire

Power Tool Type

» Right Angle Grinders

Trim Length

» 1 1/4"