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Astro Pneumatic 4546 6-inch nylon bed brush with non-sparking bristles and standard thread

Astro Pneumatic

Astro Pneumatic 4546 6-Inch Nylon Bed Brush

SKU CH-8Q7N-G5ZMV

A 6-inch nylon bed brush that resists clogging, uses non-oxidising non-sparking material and runs up to 6500 rpm

  • Product typeAbrasive Finishing Tools
  • Prevents clogging and loading with special design
  • Non-oxidizing materials will not react with metal surfaces
  • Non-sparking construction safer than conventional wire brushes
  • Lasts up to 6 times longer than wire brushes
  • Standard 5/8" thread fits tools up to 6500rpm

6-Inch Nylon Bed Brush

The Astro Pneumatic 4546 is a pneumatic abrasive finishing tool built for surface preparation on metal. Its non-oxidizing nylon construction prevents reactions with the workpiece while the non-sparking design offers a safer alternative to conventional wire brushes. It mounts via a standard 5/8-inch thread for use with compatible air-powered equipment.

Sustained-load behaviour

The brush features a special design that helps prevent clogging and loading during continuous operation. This characteristic maintains consistent abrasive contact over extended periods rather than losing effectiveness as debris accumulates. The manufacturer states the brush lasts up to 6 times longer than conventional wire brushes under normal circumstances, indicating durable performance in prolonged use.

Thermals noise and power

Operating at a maximum of 6500rpm, the tool runs within standard pneumatic speed ranges for finishing applications. The non-sparking nylon material reduces ignition risk compared to metal wire alternatives during high-speed rotation. As an air-driven accessory, its power draw and noise profile depend entirely on the compressor and air tool combination selected by the operator.

How it compares

Measured against everything we stock in Air & Hydraulic Power Tools, at today’s prices. Recalculated every night.

Price $19.99
Cheaper than about 83% of the 243 comparable items (median $61.99).

Specifications

Product
Brand nameAstro Pneumatic
Product typeAbrasive Finishing Tools

Questions about this item

How much heat does the 4546 generate when running continuously at 6500rpm?

The brush itself produces negligible heat; any warmth comes from friction against the workpiece, so allow cool-down periods during extended use.

What tool and thread size are required to mount the 4546?

You need a pneumatic or electric rotary tool with a standard 5/8" thread and a speed rating of at least 6500rpm.

Will the 4546 damage older soft-metal surfaces I want to keep?

Its non-oxidizing nylon bristles will not react with or embed in soft metals, making it safer than wire brushes on vintage panels.

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