KNIPEX Tools 87 01 300 Cobra Pliers, 12 in - Precise Self-Locking Grip

In this review of the KNIPEX Tools 87 01 300 12 in Cobra Pliers, the bottom line is simple: this is a compact, precision tool for anyone who needs a reliable gripping plier that stays set under load. Built in Wuppertal-Cronenberg, Germany, these pliers shine for small jobs and tight spaces where a secure, non-slip hold matters most. The single biggest reason to buy is the tool's unique self-locking adjustment and induction-hardened gripping teeth, which eliminate repeated readjusting and reduce hand strain during repetitive clamping.

Key Features

• Self-locking adjustment: The pliers lock onto pipes and nuts once set, so users do not need to keep readjusting while working.
• Induction-hardened teeth: Hardened gripping surfaces provide long-lasting bite and reduced slipping on fittings and hose collars.
• Built-in pinch guard: A safety guard helps prevent painful pinches and blood blisters on the hand during use.
• Made in Germany: Manufactured in Wuppertal-Cronenberg, the pliers reflect consistent craftsmanship and durable construction.
• Quick adjustment button: The push-button jaw adjustment lets users rapidly set the jaw width for faster workflow on varied fasteners.

Who It's For

The KNIPEX Cobra 12 in pliers are ideal for tradespeople, plumbers, and serious DIYers who often work in confined spaces or on small fittings where a secure, non-slip grip is essential. They suit anyone who values durable build quality and a tool that minimizes time spent readjusting during repetitive tasks.

Those looking for the largest heavy-duty pipe wrenches or extremely wide jaw capacity might look elsewhere; this tool is optimized for versatility and precision on pipes, nuts, and hose collars rather than very large industrial fittings.

Pros & Cons

Pros

• Exceptional grip and durability thanks to induction-hardened teeth that resist wear.
• Self-locking adjustment speeds up work and prevents slipping on the workpiece.
• Thoughtful safety design with a pinch guard reduces hand injuries during use.

Cons

• As a 12 in tool, it is not intended for very large pipes or applications requiring extreme jaw opening.

Specifications

Brand	KNIPEX
Model / MPN	87 01 300
Length	12 in
Origin	Made in Wuppertal-Cronenberg, Germany
Key feature	Self-locking adjustment with push-button
Grip surface	Induction-hardened gripping teeth

Our Verdict

The KNIPEX Tools 87 01 300 Cobra Pliers are a smart buy for professionals and dedicated DIY users who need a dependable, precise plier for routine plumbing and mechanical tasks. Its German construction, self-locking adjustment, and hardened teeth deliver lasting performance and time savings, making it a good value for a primary toolbox plier.

Frequently Asked Questions

Are these pliers suitable for plumbing work?
Yes. The self-locking jaw and hardened teeth make them well suited for pipes, hose collars, and related plumbing fasteners.

Will the adjustment slip under load?
No. The unique self-locking mechanism holds once set, preventing slipping during normal use.

Where are these pliers manufactured?
They are made in Wuppertal-Cronenberg, Germany, reflecting the brand's manufacturing origin.