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Estwing 42509 blue hexagonal cold chisel 1 inch tip

Estwing

Estwing 42509 1 inch hex cold chisel tool storage

SKU CH-70WE-YEXMZ

Drop-forged EN9 high-carbon steel cold chisel with a 1-inch hex shaft for cutting and shaping metal without twisting

  • Drop-forged EN9 high-carbon steel for lasting strength
  • Hardened edge cuts iron, mild steel, brass, bronze, copper cleanly
  • Blue painted shaft resists rust and corrosion
  • Hexagonal 1-inch shaft prevents twisting during use
  • Suited for machining, casting, welding and general metal shaping

Estwing 42509 Cold Chisel

The Estwing 42509 is a 1-inch wide cold chisel drop forged from EN9 high carbon steel for strength and durability. Its hexagonal shaft profile resists twisting during use and is painted blue for corrosion protection. The hardened edge cuts through iron, mild steel, brass, bronze, copper and other soft metals. It is designed for machining, casting, welding and general metal shaping tasks.

Suited for metalworkers removing flash or burrs

This tool suits tradespeople who need a single-piece forged chisel for shearing seized fasteners or cleaning rough castings. The hex shaft helps users maintain grip alignment when striking. Buyers who require a non-sparking tool for hazardous environments should look elsewhere because the high carbon steel construction is not rated for that use. Anyone needing a wider or narrower blade width will need a different model.

1-inch wide hex shaft cold chisel

The defining specification is the 1-inch wide tip combined with a hexagonal shaft that prevents the tool from rotating in the hand. The EN9 high carbon steel forging and hardened edge determine the range of metals it can cut effectively. California Proposition 65 warnings apply as the product contains chemicals known to cause cancer and reproductive harm. No other dimensions or steel grades are provided for this model.

How it compares

Measured against everything we stock in Tool Bags & Storage Cases, at today’s prices. Recalculated every night.

Price $9.99
Cheaper than about 85% of the 2,748 comparable items (median $20.99).

Specifications

Product
Brand nameESTWING

Questions about this item

What size hammer or striking tool is needed to use the 1-inch wide hex cold chisel?

The chisel has a 1-inch wide tip and a hexagonal EN9 high-carbon steel shaft; use a hammer heavy enough to drive it through iron, mild steel, brass, bronze or copper without mushrooming the struck end.

Can the 42509 cold chisel be used with older forged-steel punches and drift pins in the same tool roll?

Yes, the hexagonal shaft prevents twisting during use and the blue painted finish resists rust, so it stores safely alongside other forged steel striking tools without damaging them.

How can I verify the hardened edge is cutting cleanly after the first few strikes?

Check that the chisel shears seized nuts, bolts or rivets and leaves clean cuts on castings and soft metals without the edge rolling or the shaft twisting in your grip.

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