KNIPEX Cobra 87 01 250 - 25 Adjustment Positions

KNIPEX Cobra 87 01 250 water pump pliers bring a 10-inch frame, serrated jaws, and a push-button adjustment system to plumbing and mechanical work. The tool uses a box-joint design and non-slip plastic handles, while its self-locking jaw action is designed to reduce slipping on pipes and nuts.

Core Specifications and Capacity

The exact model is 87 01 250, with a stated length of 10 inches, width of 2 inches, height of 3/4 inch, and weight of 0.745 pounds. Its maximum opening reaches 2 inches for round pipe and 1 3/4 inches for hexagonal workpieces.

The jaw system provides 25 adjustment positions. KNIPEX specifies chrome vanadium electric steel that is forged and oil-hardened, serrated gripping surfaces, and teeth hardness of approximately 61 HRC.

Adjustment and Construction

A push button lets the lower jaw move directly on the workpiece, while fine adjustment sets the gripping position. The box-joint construction uses a double guide, and a pinch guard helps prevent the handles from closing on the user's fingers.

The handle width is 1 3/4 inches, and the handles have a non-slip plastic coating. The jaws are polished, the remaining surface has a gray atramentized finish, and the tool is listed under DIN ISO 8976.

The manufacturer lists the country of origin as Germany and identifies the material as chrome vanadium electric steel. The product is not a 1,000-volt insulated tool, so the electrical warning applies: power must be switched off before work, and approved eye protection is required.

US Price and Use Case

Home Depot lists model 87 01 250 at $38.19 as of 09/22/2026. That price places the tool below larger 12-inch Cobra versions while retaining a 2-inch round-pipe capacity.

The 10-inch size suits repair kits and workbenches that need more reach than compact slip-joint pliers without moving to a longer handle. Its 0.745-pound listed weight and 25-position adjustment also distinguish it from fixed-size pipe tools, but the 2-inch opening sets a firm limit for larger fittings.

Verdict for Plumbing Tasks

KNIPEX Cobra 87 01 250 is a water pump plier for pipes, nuts, and other hard-to-grip workpieces. Its measurable profile is straightforward: 10 inches long, 25 adjustment positions, 2-inch round-pipe capacity, and 0.745 pounds.

The model fits users who need a manually adjustable general-purpose plier for plumbing maintenance, mechanical assembly, and service work. It is not an insulated live-circuit tool, and work beyond its 2-inch round-pipe capacity calls for a larger plier or a pipe wrench.