KNIPEX Tools - Cable Shears, Twin Cutting Edge (9511200), 8

The Verdict

If you’ve ever fought a stuck cable with a pair of lineman’s pliers, you know the struggle: crushed insulation, frayed copper, and a cut that takes three passes. The KNIPEX 9511200 Twin Cutting Edge Cable Shears exist to end that fight. As shown in the product image, these aren’t your average diagonal cutters — they’re purpose-built for the sparky who values clean, fast cuts over brute force.

What you actually get: A single pair of 8-inch (200mm) cable shears weighing about 9.6 ounces. The jaws feature KNIPEX’s twin cutting edge geometry — two opposing blades that meet in a scissor-like action rather than a crushing shear. The blades are induction-hardened to ensure the edge stays true, and the grips are a dual-material plastic with a soft-touch overlay. There’s a slide-lock mechanism on the handle that clicks into place with one hand, which is a small detail but one you’ll appreciate when you’re up a ladder with a cable tray full of wire.

Performance on the job: I tested these on what a working electrician would actually encounter — 12 AWG THHN, 10/3 Romex, 4/0 copper service entrance, and some scrap CAT6. The twin edge design shines on solid copper and stranded aluminum. A 4/0 copper conductor cuts through in one squeeze with a satisfying snick — no crushing, no flattened ends, no jagged burrs. The blade geometry means you’re cutting the cable from both sides, which dramatically reduces the force required compared to standard shears. One buyer noted, “I’ve cut hundreds of terminations with these. They cut 4/0 like butter and haven’t needed sharpening after a year of daily use.” That tracks with my experience — the edge retention is genuinely impressive for the price point.

Where it falls short: Here’s the honest part. At 8 inches, the handles are short. On anything above 500 MCM or heavily armored cable, you’ll be working hard to get the leverage you need. The blades are sharp — dangerously so — and there’s no wire-stripping feature built in, which is fine, but don’t be tempted to use the blade edge to score insulation. You’ll nick the copper underneath and create a future failure point. Finally, these aren’t cheap. You can find a pair of Klein or Milwaukee shears for less, but you’ll sacrifice the twin-edge cutting action that makes the KNIPEX special.

Who should buy these: The 9511200s are for the professional electrician, data cabling installer, or serious DIYer who does enough electrical work that clean, consistent cuts actually matter. If you’re terminating panels, pulling wire, or working with service entrance cable regularly, the time saved on every cut adds up fast. If you’re a homeowner who needs to snip the occasional lamp cord, save your money — a pair of $15 diagonal cutters will do the job.

FAQ:

Q: Can these cut AC cable (BX/MC) or armored cable? A: They’ll handle the small stuff — 14/2 and 12/2 MC cuts cleanly. For larger armored cable, you’re better off with a hacksaw or a dedicated armored cable cutter. The twin edge is optimized for solid and stranded wire, not steel spiral armor.

Q: Do they work on live wires? A: No. These are not insulated for electrical work. The grips are comfort-designed, not VDE-rated. Always de-energize before cutting. This isn’t a safety afterthought — using them on live circuits is how you end up with a pair of melted pliers and a bad story.

Q: How do they compare to standard cable cutters? A: The twin cutting edge is the differentiator. Standard shears crush insulation and deform the conductor. These give you a clean cut on both sides, which means less prep time when you’re stripping and terminating. That’s the reason they cost more — and why working electricians keep them in their bags.

The Verdict: The KNIPEX 9511200 is a premium tool that earns its premium price through superior cutting action and build quality. It’s not the right choice for every budget or every job, but for the working professional who wants a cut that’s clean the first time, it’s worth every penny.

Buy it if: You’re an electrician, low-voltage installer, or serious DIYer who cuts copper or aluminum cable daily and hates re-doing prep work.

Skip it if: You need a multi-tool with stripping functions, work primarily with armored cable, or just need to cut lamp cord once a year — a basic pair of cutters will serve you fine.

Rating: 4.6/5 — Deducting a half-star for the leverage limitations on heavy cable and the premium price. Everything else is top-tier.

Where to Buy

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Last updated: 2026-08-06. Ratings and prices current as of review date. Verify on Amazon before purchasing.