Common Types of Pliers and What Each One Does

Most work comes down to five plier patterns. Combination pliers grip, twist and cut light wire in one tool. Long nose pliers reach into places your fingers cannot and hold small parts steady. Side cutters cut wire cleanly and close to the surface. Slip joint or water pump pliers open wide enough to turn pipe, hose fittings and large nuts. Locking pliers clamp and stay clamped so your hands are free. Everything else in a plier range is a specialist version of one of those five: circlip pliers for retaining rings, cable cutters for copper and aluminum conductors, end nippers for pulling nails and cutting flush. The mistake most people make is buying one pattern in several sizes rather than five patterns in one size, which leaves gaps that get filled by using the wrong tool. This is what each pattern is genuinely for.

What does each plier pattern actually do?

Pattern Built for Common sizes
Combination General grip, wire twisting, light cutting 6, 7 and 8 inch
Long nose Reach and precision in recesses; straight, 45 and 90 degree bent 6, 8 and 10 inch
Side cutters Clean, close cuts in wire and cable ties 5, 6 and 8 inch
Slip joint / water pump Large round work: pipe, hose fittings, big nuts 7 and 10 inch
Locking Clamping, holding, gripping rounded fasteners 4 to 12 inch

Combination pliers

The default plier. Teng Tools combination pliers are made in high carbon steel with an 80 degree cutting angle, titanium coated joints, a pipe grip section behind the serrated jaws and a cutting edge at the throat. That combination is why one tool covers so much: serrations for flat work, the curved pipe grip for round stock, and enough cutting capacity for light wire. Available in 6, 7 and 8 inch, and the 7 inch is the size most people reach for if they are only buying one.

Slip joint and water pump pliers

The distinction worth understanding here is quick-set versus standard. A standard slip joint plier is adjusted by opening the jaws and moving the pivot into the next position by hand. A quick-set version is self-adjusting: a button releases the pivot so the jaws close onto the work in one movement, one-handed, which matters when the other hand is holding the fitting. The 10 inch Teng Tools quick-set covers a 3 to 38 mm capacity in chrome vanadium with HRC60 hardened, serrated jaws and a pipe grip. Note that these are not pipe wrenches. A pipe wrench bites into round stock with hardened teeth and marks it; water pump pliers grip it without necessarily deforming it.

Locking and cutting pliers

Locking pliers earn their place because of the adjustment nut, which lets you set the jaw opening and clamping force once and return to it repeatedly. Cutting patterns are more specialized than they look: side cutters handle general wire, end nippers and pincers cut flush and pull, and cable cutters are shaped to shear copper and aluminum conductor cleanly rather than crush it. Cable cutters are for copper and aluminum only. Putting them through steel wire or a hardened fastener ruins the edge in one cut. The full cutting tools range covers the heavier options.

Vinyl, TPR or insulated: which handle should you buy?

Handle material is not a cosmetic choice, and the three types are aimed at genuinely different work. Dipped vinyl is the traditional coating: thin, hard-wearing, easy to wipe clean, and the cheapest to replace when a tool has a hard life. TPR is a softer thermoplastic rubber over a rigid core, which spreads pressure across the palm and makes a real difference on any job involving repeated squeezing, such as a day of stripping and terminating. Insulated pliers are a separate class entirely. Insulated hand tools for live electrical work are governed by the international standard IEC 60900 (published in Europe as EN 60900), which sets the construction, individual testing and marking requirements for tools rated for use up to 1000 V AC, and a tool either meets that standard and carries the marking or it is simply a plier with plastic on it. If you work on live circuits, buy from the insulated tools range and check the marking on the tool itself rather than assuming a colored handle means anything. Inspect insulated tools before every use and take any tool with a nick, cut or burn through the insulation permanently out of service. For everything else, the choice between vinyl and TPR is comfort against durability, and most workshops end up with both.

How should a plier set be stored?

Pliers are the tools that go missing, because they get carried to the job, put down on a wing, and left there. Storing a plier set in an EVA foam tray solves this in a way a drawer never will: each tool is cut into a three-color foam block, black on top and red underneath, so a missing tool leaves an unmistakable red silhouette with the size etched beside it. Checking a full set becomes a glance rather than a count. Sets are also worth buying as sets for a second reason: a mixed tray covering side cutters, lineman, long nose and quick-set slip joint gives you the five patterns above in matched sizes, which is a more useful starting point than four sizes of the same tool. Browse the full pliers range for individual patterns and mixed sets.