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Red hammer crimper tool for 8 to 4/0 AWG connectors

Klein Tools Hammer Crimper Tool 8-4/0 AWG

SKU CH-RWQJ-JCK4D

Hammer-driven indent crimper secures 8 AWG to 4/0 AWG uninsulated lugs on battery and welding cables with reinforced steel construction

  • Total capacityBlack
  • Pin count25
  • Maximum capacity mild steel10
  • Labor warranty1 Year
  • Size or dimensions6
  • Color and finishRed
  • One-hit crimps with a hammer or vise
  • Indent crimping on uninsulated terminals via V-groove base
  • Covers 8 AWG through 4/0 AWG connectors
  • Reinforced steel body resists repeated high-impact use
  • No loose parts or springs to fail

Hammer Crimper for Battery and Welding Cables

This Klein Tools hammer crimper handles uninsulated lugs from 8 AWG up to 4/0 AWG. It is built for electricians and technicians who terminate heavy battery or welding cables on site or in the workshop. The indent-style crimp and V-groove base hold the connector securely during each strike.

Requires a Sledgehammer or Vise for Operation

The tool does not generate force on its own; it needs a 2 to 4 lb sledgehammer or a shop vise to complete the crimp. Users without access to a heavy hammer or a bench vise will not be able to use this crimper effectively. No hydraulic or ratchet mechanism is included.

Crimps 8 AWG Through 4/0 AWG Uninsulated Lugs

The wire-gauge range is the single specification that determines whether this crimper fits the job. It covers eight consecutive sizes from 8 AWG to 4/0 AWG. If the cables fall outside this range, a different crimping tool is required.

How it compares

Measured against everything we stock in Electrical Trade Tools & Kits, at today’s prices. Recalculated every night.

Price $19.99
Cheaper than about 91% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameKlein Tools
Model nameHand Rivet Nut Setter Kit
Part numberHammer Crimper Tool
Total capacityBlack
Color and finishRed
Size & build
Size or dimensions6
More details
Pin count25
Maximum capacity mild steel10

Questions about this item

Which wire gauge range does this crimper cover?

It crimps connectors from 8 AWG up to 4/0 AWG, covering 8, 6, 4, 2, 1, 0, 00, 000 and 0000 gauge sizes.

What does the one-hit crimp action mean on the job?

You load the connector and cable, then strike with a 2–4 lb sledgehammer or press in a shop vise to make a secure indent crimp.

What crimping standard does the indent method follow?

The tool uses an indent crimp on uninsulated terminals with a V-groove base that holds lugs for precise, repeatable results.

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