Key Features
Push-Button AdjustmentSet the jaw directly on the workpiece with a simple button adjustment. That cuts out test-fitting and helps you get the right opening faster when you are moving between different pipe, nut, and fitting sizes. Five Sizes, One RollThis Knipex 00 19 55 S5 Cobra Water Pump Pliers Set gives you five pliers from 5 inches to 12 inches in one hard-wearing polyester roll. You get the reach and capacity you need without digging through a mixed drawer. Secure Bite, Less EffortSelf-locking jaws and hardened teeth help the pliers stay put on pipes and nuts with less squeeze force. That means better control, less hand fatigue, and less slipping when torque matters.
Overview
The Knipex 00 19 55 S5 Cobra Water Pump Pliers Set is a 5-piece gripping set built for professional users who need one roll that covers small service work up through larger pipe and fitting jobs. This is a water pump pliers set designed for gripping pipes, nuts, bolts, and irregular shapes across a wide size range. Model Number 00 19 55 S5. Instead of buying one size and making it do everything, this set gives you five Cobra pliers in 125 mm, 150 mm, 180 mm, 250 mm, and 300 mm lengths, packed in a durable polyester tool roll.
What makes the Cobra design matter on the job is how quickly it adjusts and how solidly it holds. The push-button adjustment lets you size the jaws right on the workpiece, so you are not wasting time opening and closing the pliers to guess the right setting. Fine adjustment gives you a better fit on different diameters, which helps with comfort and control. On pipe and nut work, that means faster setup and fewer slips.
Knipex also builds these to hold without needing a death grip. The self-locking jaw action on pipes and nuts reduces the hand force needed to keep the tool engaged, which is a real advantage when you are working overhead, in a cabinet, or doing repeated connections all day. The serrated gripping surfaces use specially hardened teeth rated at about 61 HRC, so the bite stays consistent and wear stays low over time.
From a construction standpoint, the box-joint design is one of the reasons Cobra pliers have the reputation they do. The double-guide joint improves stability compared to looser slip-joint styles, and the hinge bolt is designed to catch reliably so the setting does not shift unintentionally. Knipex also includes a pinch guard to help keep fingers out of trouble during adjustment and use. It is a simple feature, but if you have ever had a pair of pliers bite back, you know why it matters.
The material and finish are what you would expect from a serious Knipex hand tool. These pliers are made from chrome vanadium electric steel, forged and oil-hardened for strength and long-term durability. The jaws are polished, the body has a grey atramentized finish, and the handles use a non-slip plastic coating. That combination gives you solid grip in the hand while holding up well in everyday shop, service van, and jobsite use.
This set also covers a useful spread of capacities. The included pliers handle round pipe from 1-1/16 inches on the smallest size up to 2-3/4 inches on the largest, with matching hex capacities up to 2-3/64 inches. In practical terms, that means one roll can handle everything from small valves and compression fittings to larger plumbing connections and general mechanical fastening work.
The included roll matters more than it sounds. A hard-wearing polyester tool roll with hook-and-loop closure keeps each size organized and easy to grab, and it makes this set far more practical than keeping five loose pliers in a drawer or bucket. For techs and contractors who work out of a van, tool bag, or service cart, that organization saves time every day.
Who should buy it? Plumbers, mechanical contractors, maintenance crews, service techs, remodelers, and serious DIY users who want a complete gripping setup from a brand that has earned its place on pro trucks. If you regularly work on pipes, locknuts, valves, unions, or mixed fastener shapes, this set makes a lot of sense. If you only need one occasional pliers size, buy a single Cobra. If you need a full working range in one organized kit, this is the smarter buy.
Cover Small Repairs to Big Pipe Work
This set gives you the size spread that usually takes years to piece together one tool at a time. From tight service access to larger pipe and nut work, you have the right pliers on hand instead of forcing the wrong size to do the job.
- Includes 5 pliers: 87 01 125, 87 01 150, 87 01 180, 87 01 250, and 87 01 300
- Sizes range from 5 inches to 12 inches
- Largest pliers handle round pipe up to 2-3/4 inches
Dial In the Fit Without Guesswork
The Cobra jaw shape is built to grab more than just pipe. If your day includes round stock, hex nuts, flats, and odd hardware, these pliers adapt quickly and hold with confidence.
- Push-button adjustment sets jaw size directly on the workpiece
- Fine adjustment helps match different sizes for a more comfortable grip
- Self-locking action reduces slipping on pipes and nuts
Organized Storage That Actually Works
The included roll is not filler. It keeps each pliers size separated, visible, and easy to grab, which is exactly what you want when the tool bag is already packed and the clock is running.
- Tool roll is made from hard-wearing polyester fabric
- Hook-and-loop fastener keeps the set contained in transport
- Good fit for service vehicles, maintenance carts, and compact storage
What’s in the Box
- (1) 87 01 125 Cobra Water Pump Pliers, 5 in.
- (1) 87 01 150 Cobra Water Pump Pliers, 6 in.
- (1) 87 01 180 Cobra Water Pump Pliers, 7-1/4 in.
- (1) 87 01 250 Cobra Water Pump Pliers, 10 in.
- (1) 87 01 300 Cobra Water Pump Pliers, 12 in.
- (1) Polyester tool roll with hook-and-loop fastener
Key Specifications
| Tool Type | Water pump pliers set |
|---|---|
| Piece Count | 5 |
| Material | Chrome vanadium electric steel, forged, oil-hardened |
| Handle Type | Non-slip plastic |
| Joint Type | Box-joint |
| Surface Finish | Polished jaws, grey atramentized |
| Adjustment Positions | 13 / 11 / 18 / 25 / 30 depending on pliers size |
| Max Round Pipe Capacity | 1-1/16 in. to 2-3/4 in. depending on pliers size |
| Max Hex Capacity | 1-1/16 in. to 2-3/64 in. depending on pliers size |
| Weight | 3.472 lbs |
| DIN Standard | DIN ISO 8976 |
| Made In | Germany |
Built For
PlumbingMechanical ServiceMaintenanceGeneral ContractingRemodelingAutomotiveFacility WorkSerious DIY
Pro Tip
If you are working on finished plumbing trim or softer hardware, start with the smallest Cobra that fits the job. You still get the self-locking bite, but the shorter tool makes it easier to control pressure and avoid marking up the work.
Tool Nut’s Take
Tool Nut’s Take
One Roll, Real Coverage, No Junk Sizes
The Knipex 00 19 55 S5 Cobra Water Pump Pliers Set is the kind of set that earns its spot fast because every size in it is useful.
- Who it’s for: Pros and serious DIY users who deal with pipes, fittings, valves, locknuts, and mixed-shape hardware often enough to want a full range instead of a single compromise tool.
- Why it stands out: The push-button adjustment is fast, the self-locking grip saves your hand, and the box-joint build gives these a more solid feel than cheap slip-joint pliers.
- Worth knowing: This is a premium hand tool set, and you pay for it. But you are getting five German-made Cobra pliers in a roll, not five throw-ins you will replace next year.
Common Questions
- What type of tool is this set? It is a 5-piece water pump pliers set built around Knipex Cobra pliers for gripping round, hex, flat, and irregular workpieces.
- What size range does the set cover? The included pliers range from 125 mm to 300 mm, or about 5 inches to 12 inches.
- What is the maximum pipe capacity? Depending on the pliers size, maximum round pipe capacity ranges from 1-1/16 inches up to 2-3/4 inches.
- What are the pliers made from? They are made from chrome vanadium electric steel and are forged and oil-hardened.
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