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Ampco CR-21-ST pneumatic chisel, aluminum bronze, flat tip, round shank .68 in

Ampco

Ampco CR-21-ST Pneumatic Chisel 21 .68

SKU CH-ZWFV-MPMG7

Non-sparking aluminium-bronze pneumatic chisel with a 0.68 in round shank for use with chipping hammers

  • Non-sparking aluminium-bronze construction for hazardous-area safety
  • Round 0.68 in shank fits compatible chipping hammers
  • Flat 1 3/4 in tip removes scale, paint and bolt heads
  • 8 in overall length gives reach for metal-cutting tasks
  • Non-sparking design approved for use on welds and metal surfaces

Non-sparking pneumatic chisel

The Ampco CR-21-ST is a non-sparking pneumatic chisel built for hazardous environments where ignition risk must be eliminated. Its aluminum-bronze construction prevents spark generation during metal-on-metal contact. The tool suits maintenance crews in refineries, chemical plants and marine settings.

Round shank fits standard chipping hammers

A 0.68 in round shank slides directly into compatible chipping hammers without adapters. The round collar locks securely under hammer reciprocation. Flat chisel tip measuring 1 3/4 in wide clears scale, weld spatter and paint in a single pass.

Aluminum bronze resists deformation under

The alloy retains hardness during extended scaling sessions without mushrooming or cracking. Operators can work longer shifts on bolt-head removal and heavy corrosion without frequent tip changes. Material integrity holds steady under sustained hammer loads.

Highlights

  • Non-sparking aluminium-bronze construction for hazardous-area safety
  • Round 0.68 in shank fits compatible chipping hammers
  • Flat 1 3/4 in tip removes scale, paint and bolt heads
  • 8 in overall length gives reach for metal-cutting tasks
  • Non-sparking design approved for use on welds and metal surfaces

Specifications

BrandAMPCO

Questions about this item

How long can the chisel run continuously before the air supply becomes the limiting factor?

The tool relies on an external compressor, so sustained use is limited by the compressor’s duty cycle and tank capacity rather than the chisel itself.

What noise, heat or power characteristics appear when the chisel runs all day?

The chisel has no motor, so it generates no electrical heat or power draw; noise and vibration come from the air hammer and compressed-air exhaust.

What must I already own for this chisel to function?

You need a compatible chipping hammer that accepts a 0.68 in round shank and a compressed-air system to drive it.

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