Pliers are essential in workshops, DIY projects, automotive repair, home maintenance and professional industrial environments. However, even experienced users often make mistakes that damage their tools, compromise accuracy or cause personal injury.
Below are the most common mistakes people make when using pliers, along with practical tips and recommendations.
1. Using the Wrong Type of Pliers
One of the biggest mistakes is grabbing whichever plier is closest rather than choosing the proper type for the task.
Needle-nose pliers, diagonal cutters, slip-joint pliers, locking pliers and linesman pliers all serve different purposes.
Why it's a problem:
Using pliers not designed for the task can damage the tool and reduce precision.
How to avoid it:
Select the correct plier based on grip strength, jaw shape and cutting capability.
2. Applying Excessive Force
Many users rely on pliers to forcefully twist, pull or bend materials beyond what the tool is built for.
Why it's a problem:
- Over-tightening can warp jaws.
- Excess force may wear out pivot points.
- Can lead to hand fatigue or slipping accidents.
How to avoid it:
If you need more torque, switch to a wrench or a dedicated heavy-duty tool.
3. Using Pliers as a Hammer
Pliers are frequently misused as makeshift hammers when users are in a hurry.
Why it's a problem:
It can damage the tool's alignment.
Risks breaking the handles or injuring your hands.
How to avoid it:
Always keep an actual hammer within reach. Pliers should only be used for gripping, bending, cutting and twisting.
4. Using Pliers to Tighten or Loosen Nuts
This is a common beginner mistake, using pliers instead of a wrench or socket to turn nuts and bolts.
Why it's a problem:
- Pliers can strip the bolt head.
- Creates uneven pressure and poor grip.
- Leads to tool slippage and potential injuries.
How to avoid it:
Always use the correct wrench size or a ratchet.
5. Cutting Hard Materials with Non-Cutting Pliers
Many pliers are not designed for cutting metal wires, screws or hardened materials.
Why it's a problem:
- Causes dents or chips in the plier's jaws.
- Reduces cutting accuracy.
- Shortens the tool's lifespan.
How to avoid it:
Use diagonal cutters or high-leverage cutting pliers specifically designed for the task.
6. Not Maintaining or Cleaning Pliers
Like all tools, pliers require basic maintenance.
Common issues include:
- Rust around the pivot point
- Sticky joint movement
- Accumulated debris around the jaws
- Failure to lubricate
How to avoid it:
- Wipe down after use
- Apply oil to the pivot
- Store in a dry toolbox
- Sharpen cutting edges if applicable
7. Using Pliers with Worn or Damaged Handles
Damaged grips can cause slipping and reduce comfort.
Why it's a problem:
- Less control
- Higher risk of injury
- Reduced precision when gripping small objects
How to avoid it:
Inspect the handles regularly and replace the pliers if the grip is severely worn.
8. Ignoring Safety Gear
Skipping gloves or eye protection is a mistake users often overlook.
Why it's a problem:
- Flying debris can cause eye injury
- Bare hands can slip on metal surfaces
How to avoid it:
Use proper PPE, especially when cutting wires or working in heavy-duty environments.
9. Using Pliers at the Wrong Angle
Misalignment is a subtle but common mistake.
Why it's a problem:
- Creates uneven pressure
- Damages small components
- Wears down jaws faster
How to avoid it:
Hold the pliers so the jaws meet the object squarely. Use long-nose pliers for tight or awkward angles.
10. Storing Pliers Incorrectly
Throwing pliers loosely into a drawer can chip their edges or misalign the jaws.
How to avoid it:
Store them in a designated tool organizer, rack or toolbox tray.
Conclusion
Pliers are versatile and durable tools when used correctly. By avoiding common mistakes like applying excessive force, choosing the wrong type, using them for unintended purposes or neglecting maintenance, users can significantly improve safety and tool longevity. Proper usage ensures you get the best performance from your tools, whether you're a DIY enthusiast or a professional technician.
