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Mayhew

Mayhew 31986 Pneumatic Cold Chisel 18 Inch

  • Size: 5/8" x 18"
  • Blade Edge: Bevel
  • Blade Material: Alloy Steel
  • Handle Material: Alloy Steel

Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

An 18 inch alloy steel chisel built more for prying and rough chisel work than fine woodworking, thanks to its length and one piece steel construction.

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ASIN: B000HT8DCGModel: 31986Category: Chisels

Overview

Alloy steel runs through both the head and handle of the Mayhew 31986, a chisel measuring 5/8 inch by 18 inches and weighing 12.8 ounces. Sharing the same material for head and handle points to a one piece forged design rather than a separate grip.

An 18 inch length paired with a 5/8 inch working end places this closer to a long pry bar style chisel than a short hand chisel, built for prying and chiseling in one tool. Because the head and handle share the same alloy steel spec, it is likely forged from a single piece of steel rather than assembled from separate parts.

  • 5/8 inch by 18 inch size
  • Alloy steel head and handle
  • 12.8 ounce weight
  • One piece forged design

Who it's for

Suited to mechanics and general repair work where a long reach chisel doubles as a light pry bar, such as separating gaskets or freeing stuck parts. Less suited to fine woodworking, where a shorter, wood handled chisel gives more control.

Pros and cons

Pros
  • One piece alloy steel, no handle joint to loosen
  • 18 inch length gives extra leverage for prying
Cons
  • Long steel handle trades control for leverage

Performance notes

One piece alloy steel construction, with the handle matching the head material, generally holds up better to striking and prying than tools with a separate handle, since there is no joint to work loose over time. The 18 inch length gives extra leverage for prying, at the cost of the fine control a shorter hand chisel offers.

Specifications

BrandMayhew
Model31986
Dimensions & fit
Size5/8" x 18"
Item Weight0.8 poundslower than 68% of 108 chisels
Item Dimensions L X W18 × 0.7 inches
Construction & materials
Blade MaterialAlloy Steel
Handle MaterialAlloy Steel
Included components
Unit Count1
Included ComponentsCold Chisel
Warranty & support
Manufacturer Warranty DescriptionCall vendor for warranty
Other details
Blade EdgeBevel
Item Type NameCold Chisel

Closest rivals on specs

Record 060-1/2 Low Angle Block Plane
  • Item Weight 0.8 vs 0.72 pounds (+11%)
GreatNeck 1049 Wood Chisel 2 Inch
  • Item Weight 0.8 vs 0.7 pounds (+14%)
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Frequently asked questions

What is the Mayhew 31986 made of?

Alloy steel, for both the head and the handle.

How long is this chisel?

18 inches, with a 5/8 inch working end.

Can it be used as a pry bar?

Its length and one piece steel construction make it suited to light prying as well as chisel work.