Truper 4″ Knotted Wire Wheel

Truper 4″ Knotted Wire Wheel

Professional-grade 4-inch knotted wire wheel from Truper featuring 0.5mm twisted wire construction, a 5/8″-11 standard thread arbor, 14,000 RPM maximum speed rating — engineered for aggressive rust removal, scale stripping, weld cleaning, and metal surface preparation on angle grinders.

Key Benefits

• Knotted twisted wire construction for aggressive cleaning action
• 4″ (100mm) diameter
• 5/8″-11 standard thread for broad grinder compatibility
• 14,000 RPM maximum speed rating
• 0.5mm wire gauge
• Suitable for metal surface preparation
• Compatible with standard angle grinders
• Fast, efficient rust and scale removal
• Professional grade durability

Technical Specifications

• Brand: Truper
• Item Number: 17527
• Model: CATR-4ES
• Type: Knotted wire wheel brush
• Diameter: 4″ (100mm)
• Wire Type: Knotted/twisted wire
• Wire Gauge: 0.5mm
• Arbor Thread: 5/8″-11 standard thread
• Max Speed: 14,000 RPM
• Application: Metal

Features

• Knotted twisted wire segments for high-aggression surface cleaning and material removal
• 0.5mm steel wire gauge balances cutting aggression with wire durability
• 5/8″-11 standard thread fits the vast majority of 4″ and 4½” angle grinders
• 14,000 RPM speed rating for safe full-speed operation on standard grinders
• Orange steel hub with integrated hex nut arbor for direct grinder mounting
• Durable twisted wire construction resists splaying under load

Perfect For

• Rust and corrosion removal from metal surfaces
• Mill scale and oxidation stripping
• Weld spatter and slag removal
• Paint and coating removal from metal
• Surface preparation prior to welding
• Surface preparation prior to priming and painting
• Structural steel cleaning
• Gate, railing, and fence restoration
• Pipe and tube cleaning
• General metal fabrication and maintenance

Key Features

• Knotted Wire Construction: Twisted wire knots deliver more aggressive cutting action than straight wire brushes, making faster work of heavy rust, scale, and weld deposits
• 0.5mm Wire Gauge: Medium gauge wire provides a balance of cutting aggression and wire longevity for sustained surface preparation work
• 5/8″-11 Standard Thread: Direct-mount arbor thread fits the standard spindle on most angle grinders without requiring an adaptor
• 14,000 RPM Rated: Maximum speed rating aligns with standard 4″ angle grinder operating speeds for safe full-speed use
• Metal Application Rated: Designed and tested specifically for metal surface preparation, rust removal, and weld cleaning tasks

Application Instructions

1. Ensure angle grinder is switched off and disconnected from power before fitting
2. Verify grinder spindle thread is 5/8″-11 — thread the brush on by hand until secure
3. Do not use an additional locking nut — the brush hub is designed for direct spindle mounting
4. Replace the grinder guard before reconnecting power
5. Wear appropriate PPE — face shield (not just safety glasses), heavy gloves, long sleeves, and hearing protection
6. Keep bystanders clear of the work area — wire fragments can be ejected at high speed
7. Operate the grinder at a slight angle to the work surface for maximum cleaning contact
8. Keep the wheel moving — do not dwell in one area
9. Allow the brush to cool between extended use periods
10. Inspect wire knots before each use — do not use if wires are significantly worn or broken

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