The Knipex High Leverage Diagonal Cutter 180mm, model 74 01 180 SBA, is a compact heavy-duty wire cutter built for tradespeople who need clean, repeatable cuts without wasting hand strength. This is a high leverage diagonal cutter designed for cutting wire in tough, continuous use. If you work in construction, automotive, industrial service, or general repair, this is the kind of hand tool that earns a permanent spot in the pouch instead of sitting in the box.

What makes this cutter matter is the way Knipex balances edge geometry and leverage. The cutting edge angle and transmission ratio are designed to increase cutting performance while reducing the effort needed at the handles. In plain terms, you get more cut with less squeeze. That is a big deal when you are trimming hard wire all day or making frequent cuts in tight spaces where a larger cutter would just get in the way.

The cutting edges are additionally induction hardened to approximately 64 HRC, which is why this tool is rated for all sorts of wire, including piano wire. That hardness helps the edge stay sharp longer under demanding use. Instead of a cutter that starts strong and fades, this one is built to keep doing the same job over and over without the edges giving up early.

Body construction is just as important here. Knipex uses chrome vanadium heavy-duty forged steel with a multi-stage oil-hardened process. That combination tells you this is not a light-duty cutter dressed up to look serious. It is made for real load at the pivot and real pressure at the edges, which is exactly what you want in a diagonal cutter that may see everything from fine wire to harder materials on the same day.

At 180 mm long and about 0.53 lb, it stays compact enough for mobile work while still giving you the leverage advantage that makes high-leverage pliers worth buying in the first place. The plastic handle covering keeps the grip straightforward and familiar. It is worth noting that the handle is not insulated, so this is the right choice for cutting wire and cable in general mechanical and installation work, not for live electrical service.

The Knipex High Leverage Diagonal Cutter 180mm is made in Germany, and it fits the user who wants one cutter that can handle hard service without stepping up to something oversized. If you are a contractor, mechanic, maintenance tech, or serious DIYer who cuts wire often enough to notice the difference between average and properly built hand tools, this is the kind of cutter that pays for itself in control, edge life, and lower hand fatigue.

Why the Knipex High Leverage Diagonal Cutter 180mm Earns Its Keep

This is the kind of diagonal cutter you buy once for hard use and stop thinking about because it just does the job every time.

• Who it's for: Tradespeople, mechanics, installers, and serious DIY users who cut wire often enough to notice hand fatigue and edge wear.
• Why it stands out: The leverage is right, the edge hardness is serious, and the forged chrome vanadium build puts it in the real-duty category, not the drawer-filler category.
• Worth knowing: It is compact and very capable, but the handles are not insulated, so buy it for cutting performance and durability, not live electrical work.

• Can this cutter handle piano wire? Yes. The product data states the induction-hardened cutting edges are suitable for all kinds of wire, including piano wire.
• Is this an insulated diagonal cutter? No. The handle is listed as non-insulated.
• What is it made from? It is made from chrome vanadium heavy-duty forged steel and is multi-stage oil-hardened.
• Where is it made? The source data lists Germany as the country of origin.