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Crimped cup wire brush with dense silver wire bristles and a red metal cup marked 'satra', showing central arbor hole.

3-Inch (75mm) Crimped Cup Brush – Steel Wire, Power Tool Mount

Industrial-grade crimped steel wire cup brush for rust removal, paint stripping, and surface preparation on angle grinders and drills.

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Description

3-Inch (75mm) Crimped Cup Brush – Steel Wire, Power Tool Mount

Brief Overview

This 3-inch crimped cup brush is a workhorse for rapid surface cleaning and material removal. The densely-crimped steel wire construction delivers consistent, aggressive brushing action ideal for rust removal, paint stripping, weld spatter cleanup, and general deburring on metal surfaces. The red steel cup body features a standard arbor bore for secure mounting on angle grinders, bench grinders, and drill presses. Whether you're stocking a mechanical shop or outfitting a fabrication facility, this mid-size brush covers the most common industrial cleaning applications—and pairs well with larger twisted-wire alternatives for heavier stock removal or smaller knotted brushes for precision edge work.

Key Features

  • Crimped Steel Wire Construction: Tightly crimped bristles provide moderate wire density and consistent cutting action without excessive aggression.
  • 3-Inch (75mm) Face Diameter: Optimal coverage for general-purpose surface prep on flat and contoured workpieces.
  • Red Steel Cup Body: Durable, painted metal cup with reinforced rim for secure arbor mounting.
  • Standard Arbor Mount: Center bore accepts common 6mm and 1/4-inch shaft adapters (check your tool's spindle diameter).
  • Versatile Application Range: Effective on mild steel, stainless steel, cast iron, and aluminum with appropriate speed and technique.

Why Resellers Choose This Brush

High Turnover Category: Cup brushes are consumable-adjacent—shops reorder regularly as bristles wear. Stock the 3-inch size and you'll see repeat orders.

Margin-Friendly Entry Point: Competitive cost-per-unit with strong perceived value in the field. Mechanics and fabricators view these as essential inventory, not optional.

Broad Application Appeal: Unlike specialized brushes, the 3-inch size works across automotive, maintenance, fabrication, and light industrial settings. One SKU serves multiple customer segments.

Cross-Sell Opportunity: Customers who buy one size often need others—bundle a 3-inch crimped with a 4-inch variant for larger surfaces or a smaller 2.5-inch option for detail work and you'll increase basket size immediately.

Technical Specifications

Specification Value
Brush Diameter 3 inches (75mm)
Wire Type Steel (Crimped)
Wire Density Medium (Crimped Pattern)
Cup Body Material Painted Steel
Arbor Mount Type Standard Bore (6mm/1/4-inch compatible)
Max Speed (Recommended) Up to 6,000 RPM (angle grinder dependent)
Typical Applications Rust removal, paint stripping, weld spatter, deburring, general surface prep
Suitable Metals Mild steel, stainless steel, cast iron, aluminum (with speed control)

When to Recommend This Size

  • Flat-surface work: Ideal for cleaning large plate stock or fabricated panels.
  • Contour-friendly: The 75mm diameter balances coverage with maneuverability on curved or irregular surfaces.
  • Production prep: Fast enough for high-volume shop prep, gentle enough for precision finishing.
  • Angle grinder standard: Most shops already have 75mm-compatible grinders in rotation—no adapter investment needed.

Stocking Recommendation

Position this as your core cup brush size. Its versatility across metal types and its compatibility with standard 6,000 RPM industrial tools make it the logical starting point for any distributor entering or expanding the power tool accessory segment. Pair with size variants and different bristle types (twisted, knotted) to build a complete cup brush portfolio that addresses every shop's cleaning and prep workflow.