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The KNIPEX 00 31 20 V01 US is a two-piece Cobra tongue and groove plier set packaged in a plastic sleeve. The set includes one 7-inch and one 10-inch self-locking Cobra water pump plier, giving technicians and tradespeople a matched pair suited to a wide range of gripping, clamping, and turning tasks. The self-gripping jaw design allows the pliers to lock onto fasteners, pipe, and fittings without slipping, reducing hand fatigue during repetitive work. Both tools are built to the dimensional and performance standards KNIPEX applies across the Cobra product line. The plastic sleeve keeps the pair together during transport and storage.
This set is well suited for plumbing, HVAC, and general mechanical service work where two common plier sizes are needed on the same job. The 7-inch plier handles tighter access points and lighter-duty connections, while the 10-inch plier provides added leverage for larger fittings, pipe unions, and supply valves. The set is appropriate for both residential and light commercial service calls where a compact, purpose-matched tool pair is preferred over carrying individual loose pliers.
Designed as a matched two-piece hand tool set for general plumbing, HVAC, and mechanical service applications requiring tongue and groove pliers in 7-inch and 10-inch sizes.
Hand tools of this type require no installation. Before use on pressurized plumbing or gas lines, shut off the relevant supply and depressurize the system per applicable IPC or IFGC requirements. Inspect jaw condition before each use and replace any tool showing cracked, chipped, or deformed jaw teeth. Plumbers, pipefitters, HVAC technicians, and general mechanical tradespeople are the primary users of this set.
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