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Red composite hammer lug crimper with spring-loaded plunger for 8 AWG to 4/0 AWG cables

Klein Tools Hammer Lug Crimper Tool 8 AWG to 4/0 AWG

SKU CH-BPHX-NJS6Z

Hammer-operated crimper secures 8 AWG to 4/0 AWG copper or aluminium battery and welding cables with a glass-fibre composite body

  • Total capacityBlack
  • Pin count25
  • Maximum capacity mild steel10
  • Labor warranty1 Year
  • Size or dimensions6
  • Color and finishRed
  • Crimps 8 AWG to 4/0 AWG copper or aluminium cables
  • Glass-filled composite body resists heavy impact and drops
  • Spring-loaded plunger works with hammer or bench vise
  • Compact size fits in any toolbox for mobile jobs
  • No setup required — ready to use immediately

Hammer Lug Crimper Tool 8 AWG to 4/0 AWG

This hand-operated crimper creates secure connections on heavy-gauge copper or aluminium cables ranging from 8 AWG up to 4/0 AWG. The tool suits automotive, marine and welding cable work where reliable battery-terminal crimps are needed on site. Its glass-filled composite body resists impact and wear during repeated use. No power source or bench mounting is required for operation.

Capacity and headroom

The V-groove accepts wire sizes from 8 AWG through 4/0 AWG, covering battery cables, welding leads and similar heavy conductors. A 2 lb to 4 lb sledgehammer drives the spring-loaded plunger to form the crimp. The composite frame withstands repeated heavy strikes without cracking. Very large lugs or cables beyond 4/0 AWG fall outside the tool's range.

Upgrade from basic crimpers

This tool replaces handheld squeeze-type crimpers that cannot generate enough force for large-gauge terminals. It also removes the need for a hydraulic press when only occasional heavy crimps are required. The jump is worth it for technicians who need portable, high-force crimping without carrying a pump and hose. Workers who crimp large volumes daily may still prefer a powered bench unit.

How it compares

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

Price $13.99
Cheaper than about 94% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameKlein Tools
Model nameHand Rivet Nut Setter Kit
Part numberSL-001
Total capacityBlack
Color and finishRed
Size & build
Size or dimensions6
More details
Pin count25
Maximum capacity mild steel10

Questions about this item

Can I use this 8 AWG to 4/0 AWG crimper with a bench vise instead of a hammer?

Yes, the tool is designed for both hammer strikes and bench vise compression, giving you two ways to secure the terminal.

How do I verify the crimp is secure after striking the plunger?

Inspect the terminal for a uniform, gap-free connection and tug the wire firmly; a proper crimp will not pull loose.

Does the kit include the hammer or any lugs for the 8 AWG to 4/0 AWG range?

The kit contains only the crimper body; a 2 to 4 lb sledgehammer and the appropriate lugs must be purchased separately.

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