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Close-up of knotted wheel wire brush with twisted steel wire tufts, red central hub and threaded hex nut, showing text 'WEAR EYE PROTECTION', 'satra' and 'MAX. 12500 R.P.M.'Knotted wheel brush in front of its blue saTra retail box labeled S-4KWB100, showing brush, packaging, barcode and size 100mm

4-Inch (100mm) Knotted Wheel Wire Brush for Angle Grinders

Heavy-duty knotted wire wheel brush for aggressive deburring, rust removal, and surface prep on grinders up to 12,500 RPM.

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Description

4-Inch (100mm) Knotted Wheel Wire Brush for Angle Grinders

Overview

This 4-inch knotted wheel brush delivers aggressive cleaning and deburring performance for professional workshops and maintenance operations. The radially-arranged twisted steel wire knots are engineered for high-speed stock removal on ferrous metals, making it essential for rust treatment, weld cleanup, and surface preparation work. Rated for operation up to 12,500 RPM, this brush fits standard M14 grinder arbors and provides consistent performance across repeated production cycles. Stock this alongside larger-diameter wheel brushes and specialized bevel brush designs to meet varying shop requirements.

Key Features

  • Knotted Wire Construction: Twisted steel wire bundles create aggressive cutting action and extended working life compared to unbraid alternatives
  • 4-Inch (100mm) Diameter: Optimal balance between surface coverage and control for general-purpose grinding stations
  • M14 Threaded Arbor: Standard mounting compatibility with universal angle grinder systems
  • 12,500 RPM Maximum Rating: Engineered for consistent performance within safe operational parameters
  • Radial Wire Arrangement: Full-face contact ensures uniform material removal and reduced operator fatigue
  • Red Steel Hub: Durable center hub with integrated safety markings and specifications

Business Advantages for Resellers

  • High-Turnover Item: Knotted wheel brushes are consumable tooling with predictable replacement cycles—establish recurring orders from your shop customer base
  • Margin-Friendly: Steel wire brushes command healthy margins while remaining price-sensitive enough for bulk adoption
  • Complete Size Range Available: Stock this 4-inch model alongside the larger 5-inch option and smaller cup brush variants to capture cross-sell opportunities across multiple tool categories
  • Workshop Essential: Every professional shop requires multiple brushes in rotation; position as a maintenance staple

Technical Specifications

Specification Value
Brush Diameter 4 inches (100 mm)
Wire Material Steel (knotted bundles)
Mount Type M14 Threaded Arbor
Maximum RPM 12,500
Configuration Radial wheel design
Application Ferrous metal deburring, rust removal, weld prep

Ideal Applications

  • Metal Fabrication: Rapid weld bead cleanup on structural steel and mild steel assemblies
  • Maintenance & Repair: Rust and oxidation removal on machinery and industrial equipment
  • Surface Preparation: Pre-finishing work before grinding, polishing, or coating application
  • Tooling Shops: General-purpose deburring in CNC and traditional machine environments

Value Proposition

At 4 inches (100mm), this knotted wheel brush strikes the practical middle ground for shop operations—large enough for efficient surface coverage, compact enough for operator control on hand-held grinders. The twisted wire knot design maximizes cutting efficiency and brush life, directly reducing your customers' tool replacement frequency and improving their cost-per-operation metrics.

Stock this proven consumable and position it as a high-velocity SKU in your industrial distribution portfolio.