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Silver cup wire brush with threaded 5/8-11 arbor for right-angle grinder

Weiler

Weiler 14413 Cup Wire Brush 3-1/2" 5/8-11 12000 RPM 180 Grit

SKU CH-RFMA-53MZD MPN 14413

A 3-1/2 inch abrasive nylon cup brush with 180 grit for surface preparation on right-angle grinders up to 12,000 RPM

  • Product typeSanders
  • 180-grit abrasive nylon cleans carbon steel effectively
  • Crimped 0.035-in wire reaches into contours
  • 3-1/2-in cup covers broad surface area
  • 5/8-11 threaded arbor fits right-angle grinders
  • Rated for 12000 RPM maximum operating speed

Crimped abrasive nylon cup brush

The Weiler 14413 is a 3-1/2 inch diameter cup brush filled with crimped abrasive nylon bristles rated at 180 grit. It mounts on a right-angle grinder using a 5/8-11 threaded arbor and is rated for a maximum operating speed of 12,000 RPM. The brush is designed for surface conditioning on carbon steel.

Best for light deburring

This brush suits users who need a non-metallic abrasive for cleaning, blending or finishing carbon steel without embedding wire fragments. It is not intended for heavy stock removal, aggressive weld cleaning or applications that require a harder cutting action than 180 grit nylon can provide.

5/8-11 threaded arbor compatibility

The brush fits right-angle grinders equipped with a 5/8-11 threaded spindle. Verify that the tool’s maximum speed does not exceed 12,000 RPM and that the arbor thread matches exactly before installation.

How it compares

Measured against everything we stock in Sanders, Rotary & Demolition Tools, at today’s prices. Recalculated every night.

Price $46.99
Pricier than about 68% of the 477 comparable items (median $21.99).

Specifications

Product
Brand nameWeiler
Model name14413
Product typeSanders

Questions about this item

How often will the 0.035 in. abrasive nylon bristles need replacement under regular use?

The crimped wire bristles wear gradually; replace the brush once the 1 1/2 in. bristle length has shortened enough to reduce cleaning effectiveness.

At what point does the 12,000 RPM limit become the constraining factor during continuous grinding?

The 12,000 RPM maximum operating speed is the hard ceiling; running the right-angle grinder above this rating risks brush failure and must be avoided.

How much heat builds up in the 3 1/2 in. cup body during all-day operation on carbon steel?

The abrasive nylon construction dissipates heat through the crimped wire matrix, keeping the cup body at manageable temperatures during extended use.

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