How to Use Pliers Correctly

Pliers are one of the most fundamental hand tools — they grip, bend, cut, and hold objects that your fingers can't manage alone. But with so many types available, knowing which pliers to use for which task — and how to use them correctly — makes all the difference. Here's a complete guide.

Types of Pliers and Their Uses

• Combination/slip-joint pliers: The most common type. Adjustable jaw for gripping various sizes. Good for general gripping, bending, and light cutting.
• Needle-nose pliers: Long, tapered jaws for reaching into tight spaces and bending small wires.
• Locking pliers (Vise-Grips): Lock onto the workpiece for hands-free holding.
• Lineman's pliers: Heavy-duty combination pliers for electrical work — grip, cut, and twist wire.
• Diagonal cutting pliers (wire cutters): For cutting wire and small fasteners flush.
• Tongue-and-groove (channel-lock) pliers: Wide-opening adjustable pliers for large pipes and fittings.

Recommended Pliers Set

The Amazon Basics 5-Piece CR-V Locking Pliers Set includes 2 straight jaw and 3 curved jaw locking pliers (6.5–10") in chrome vanadium steel with a carrying case — versatile for gripping, clamping, and holding. Check it on Amazon →

How to Use Combination Pliers

1. Adjust the jaw: Open the pliers and set the pivot to the position that fits your workpiece — the jaws should grip firmly without being forced.
2. Grip the workpiece: Position the jaws so the full jaw width contacts the object — not just the tips.
3. Squeeze firmly: Apply steady grip pressure — don't over-squeeze on soft materials like copper pipe.
4. Twist or pull: Use your wrist and arm for turning motion, not just finger strength.

How to Use Locking Pliers (Vise-Grips)

1. Turn the adjustment screw at the end of the handle to set the jaw opening slightly larger than your workpiece.
2. Place the jaws on the workpiece.
3. Squeeze the handles until the locking mechanism clicks — the pliers are now locked onto the workpiece.
4. To release, squeeze the release lever on the lower handle.

How to Cut Wire with Pliers

1. Use the cutting notch near the pivot of combination pliers, or use dedicated diagonal cutters for cleaner cuts.
2. Position the wire in the cutting notch — not at the tip of the jaws.
3. Squeeze firmly in one motion — a clean cut requires decisive force, not gradual pressure.
4. Point the cut end away from your face — cut wire ends can fly.

How to Bend Wire with Pliers

1. Grip the wire at the bend point with the pliers.
2. Use your free hand to bend the wire around the jaw.
3. For tight bends, use needle-nose pliers for precision.
4. For loops, wrap the wire around the round jaw of round-nose pliers.

Pliers vs. Wrench: When to Use Each

Never use pliers on hex nuts and bolts if you can avoid it — pliers round the corners. Always use a wrench or socket for fasteners. Use pliers for:

• Round objects (pipes, rods) that wrenches can't grip
• Gripping and holding while another tool does the work
• Bending and cutting wire and soft materials

Safety Tips

• Wear safety goggles when cutting wire — cut ends fly. DEWALT DPG84 Goggles →
• Wear work gloves for extended use. HANDLANDY Work Gloves →
• Never use pliers on live electrical wires unless they are insulated pliers rated for electrical work
• Keep fingers away from the cutting edges
• Don't use pliers as a hammer — it damages the pivot and jaws

Maintenance

• Clean jaws after use — debris reduces grip
• Apply a drop of oil to the pivot joint periodically
• Replace pliers with cracked handles or damaged jaws

Common Mistakes to Avoid

• Using pliers on hex fasteners (rounds the corners)
• Gripping with just the tips of the jaws (slips and damages the workpiece)
• Using the wrong type of pliers for the task
• Cutting wire without eye protection
• Using non-insulated pliers near live electrical circuits