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Klein Tools

Klein Tools 409-D244-5C Diagonal-Cutting Pliers

SKU CH-MTTQ-R4RQ4

Insulated diagonal-cutting pliers with slim tapered jaws cut copper, soft, hard and piano wire up to 4 AWG

  • TypePliers
  • MaterialSteel
  • Color/FinishBlue
  • FeaturesPlastic Dipped Handle Spring Loaded
  • Insulated handles rated to 1000 V for electrical safety
  • Slim tapered nose reaches tight spots with 15/32 in tip width
  • Spring-loaded action reduces hand fatigue during repetitive cuts
  • Tool-steel jaws cut 4 AWG copper and piano wire
  • Ergonomic red-and-yellow plastic-dipped grips provide secure hold

What the Klein Tools 409-D244-5C Is

These diagonal-cutting pliers are built for electricians and technicians who need a compact, insulated hand tool for precise wire trimming. The slim tapered nose reaches into tight junction boxes and terminal blocks where bulkier cutters cannot fit. Spring-loaded handles reduce hand fatigue during repetitive cutting tasks. The red and yellow dipped grips provide comfort and quick visual identification on a busy workbench.

The Specification That Decides Fit

The 1000 V insulation rating is the single figure that determines whether this tool meets the safety requirements for live electrical work. Without that rating the pliers are only suitable for de-energised circuits. The slim nose profile and 11/16 in jaw length define the maximum reach and cutting geometry for confined spaces. Buyers who need a wider jaw opening or a non-insulated heavy-duty cutter should look elsewhere.

Capacity and Headroom

The cutting capacity is rated for 4 AWG copper and covers soft, hard and piano wire within that gauge. The maximum jaw opening of 7/8 in sets the upper limit for the thickest single conductor that can be positioned for a clean cut. For larger gauge cables or multi-strand bundles the tool will run out of leverage and jaw depth. The spring return assists repeated snips but does not increase the fundamental cutting limit.

Highlights

  • Insulated handles rated to 1000 V for electrical safety
  • Slim tapered nose reaches tight spots with 15/32 in tip width
  • Spring-loaded action reduces hand fatigue during repetitive cuts
  • Tool-steel jaws cut 4 AWG copper and piano wire
  • Ergonomic red-and-yellow plastic-dipped grips provide secure hold

Specifications

BrandKlein Tools
TypePliers
MaterialSteel
Color/FinishBlue
FeaturesPlastic Dipped Handle Spring Loaded

Questions about this item

How does the 1000V rating apply when I use these pliers on live circuits?

The 1000V insulation rating means the handles are tested to protect against accidental contact with energised conductors up to that voltage; always verify the circuit is de-energised before work and follow local electrical safety procedures.

What does the 4 AWG copper cutting capacity mean for typical wiring jobs?

These jaws can cleanly cut solid or stranded copper wire up to 4 AWG, covering most residential and light commercial branch-circuit conductors; harder materials such as piano wire are also within the rated capacity.

Will the 5 1/16 in overall length fit in my standard tool pouch?

At just over five inches long with a 7/8 in maximum jaw opening, the pliers are compact enough for most electrician pouches or belt holsters while still giving enough leverage for the rated cutting tasks.

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