Last Updated: March 23, 2026
Quick Comparison
| Feature | Wire Cutter | Wire Stripper |
|---|---|---|
| Primary function | Cuts wire completely | Removes insulation from wire end |
| Effect on conductor | Severs it | Leaves it intact |
| Wire gauge support | Up to tool’s rated capacity | Specific gauges (10 AWG–24 AWG typical) |
| Common types | Diagonal, flush, lineman’s | Manual, automatic, self-adjusting |
| When you use it | Cutting wire to length | Preparing wire end for termination |
| Price range | $8–$40 | $5–$60 |
What Is a Wire Cutter?
A wire cutter is a hand tool designed to cut through wire, cable, and other conductors. The cutting blades are hardened and sharpened to shear cleanly through metal. Wire cutters come in several types for different applications:
Types of Wire Cutters
- Diagonal cutters (dikes): The most common type for electricians. The angled cutting head allows clean cuts in tight spaces. Good for copper wire up to about 10 AWG.
- Flush cutters: Designed to cut flush to a surface — useful in electronics work for trimming component leads after soldering. See our guide on how to solder wires together for context.
- Lineman’s pliers: Heavy-duty side-cutting pliers favored by electricians. The side cutters handle 6 AWG and larger wire. Also serve as crimpers and gripping pliers.
- Cable cutters: Designed for heavy cables (romex, THHN, armored cable). Use a ratchet or compound mechanism to cut cleanly through large conductors without crushing.
- Bolt cutters: For cutting very thick cable or padlocks — overkill for typical wiring work.
What Is a Wire Stripper?
A wire stripper removes the outer plastic insulation from a wire’s end to expose the bare conductor for connection. The stripping blades are sized precisely — they cut through insulation without nicking the copper conductor underneath. A nicked conductor is weaker, creates resistance, and can fail or arc over time.
Types of Wire Strippers
- Manual wire stripper: Has graduated notches labeled by wire gauge (10 AWG, 12 AWG, 14 AWG, etc.). You manually select the correct notch, clamp the tool, and pull to strip. Simple, inexpensive ($5–$15).
- Self-adjusting (automatic) wire stripper: Automatically adjusts blade depth to the wire gauge inserted. Squeeze the handle and the insulation strips cleanly without gauge selection. Much faster for production work ($20–$60).
- Combination stripper/cutter: Handles both stripping and cutting in one tool. Common in basic electrician kits — good for occasional use but may not strip as cleanly as a dedicated stripper.
- Coax cable stripper: Specialized tool for coaxial cable (RG6, RG59) that strips multiple insulation layers in one pass.
Safety Precautions
- Always de-energize circuits before working on wire: Neither wire cutters nor wire strippers should be used on live wire. Confirm power is off with a non-contact voltage tester before any wire work
- Use insulated tools: Look for wire cutters and strippers rated 1000V (IEC 60900 standard) for electrical work. These have insulated handles that protect against accidental contact with live conductors
- Match the tool to the wire gauge: Using a stripper notch too small for the wire nicks the conductor. Too large and the insulation won’t strip cleanly. For correct gauge selection, see our wire gauge chart guide
- Dispose of cut wire ends safely: Small wire clips from diagonal cutters can fly and become embedded in skin or eyes. Point the cutter away from people when cutting
When to Use a Wire Cutter
- Cutting electrical wire (romex, THHN, speaker wire) to length
- Removing old wire from electrical boxes
- Trimming wire leads in electrical panels
- Cutting zip ties
- Trimming component leads in electronics after soldering
- Cutting cable ties and bundling straps
When to Use a Wire Stripper
- Preparing wire ends for wire nuts or push-in connectors
- Stripping wire for terminal block connections
- Preparing ends for crimp connectors — see our guide on how to crimp wire connectors
- Stripping speaker wire for binding post connections
- Preparing thermostat wire, low-voltage wire, data cable ends
- Any situation where the wire continues past the connection point and only the insulation needs removing
Can You Use a Wire Cutter to Strip Wire?
Technically, experienced electricians sometimes score and rotate diagonal cutters around wire insulation to strip it — but this risks nicking the conductor. A nicked conductor can fail mechanically or create a high-resistance connection that heats up. For any safety-critical wiring, use a proper wire stripper to preserve conductor integrity. For household electrical work, never nick conductors — code compliance and safety depend on intact wiring.
Choosing the Right Tool for the Job
For Home Electrical Wiring (14–12 AWG Romex)
Use a manual wire stripper with 12 AWG and 14 AWG notches clearly labeled, plus a pair of diagonal cutters or lineman’s pliers for cutting wire to length. A combination tool works but a dedicated stripper gives cleaner results.
For Automotive Wiring (16–22 AWG)
Use an automatic self-adjusting wire stripper — it handles the fine gauge range of automotive wire (18–20 AWG) with less chance of breaking thin conductors. Pair with small diagonal cutters.
For Electronics Work
Use flush cutters for component leads and small diagonal cutters for wire. An automatic wire stripper handles fine wire gauges (22–28 AWG) that manual strippers often damage. See our desoldering guide for related electronics work.
Pro Tips
- Buy insulated tools: Klein Tools, Ideal, and Knipex make high-quality 1000V insulated wire cutters and strippers that last decades and protect you on live circuits
- Use the correct gauge notch: When using a manual stripper, always identify the wire gauge before stripping. For romex, the gauge is printed on the outer jacket
- Check for nicks after stripping: Hold the stripped conductor up to light and visually inspect for shiny score marks. Any nicks = restrip further back
- Automatic strippers pay for themselves fast: If you’re running multiple circuits, a self-adjusting stripper like the Klein 11057 or Ideal T-Stripper cuts stripping time by 70%
- Keep cutting edges clean: Wipe blades occasionally with light oil. Dull or corroded cutters crush wire ends instead of cutting cleanly
Common Mistakes
- Using scissors or a utility knife to strip wire: This frequently nicks or completely cuts the conductor. Always use a proper wire stripper
- Using the wrong gauge notch: Too small a notch nicks the conductor; too large leaves insulation behind
- Stripping too much insulation: For wire nuts, strip 3/4″. For push-in connectors, 5/8″. Strip to the connector’s specification — excessive bare conductor creates shock hazard
- Using worn or dull cutters: Dull diagonal cutters crush the wire end rather than cutting cleanly, deforming the conductor strands
Frequently Asked Questions
Can a wire stripper also cut wire?
Many combination wire stripper/cutters include a wire cutting section — usually at the base of the jaws. These work for light-gauge wire but aren’t as strong or clean as dedicated diagonal cutters for heavy wire like 10 AWG or 12 AWG solid conductor.
Do I need both a wire cutter and a wire stripper?
Yes, for almost all wiring projects. You’ll cut wire to length (cutter) and then prepare the ends for connections (stripper). Some combination tools do both, but dedicated tools each do their job more precisely.
What’s the best wire stripper for home electrical work?
For standard 12 AWG and 14 AWG residential wiring, the Klein Tools 11057 (self-adjusting) or the Ideal T-Stripper are both excellent. Budget option: Klein’s manual strippers (Klein 11055) handle 10–18 AWG with clean results at around $12.
What gauge wire is used in most home circuits?
Most 15-amp circuits use 14 AWG wire. Most 20-amp circuits use 12 AWG. Kitchen, bathroom, and laundry circuits are often 12 AWG. For a full breakdown, see our wire gauge chart guide.
Can you strip wire without a stripper tool?
You can use a utility knife to score around the insulation carefully (parallel to the wire, not perpendicular), but this risks nicking the conductor. For any permanent electrical installation, always use a proper wire stripper.
Conclusion
Wire cutters and wire strippers serve completely different purposes — one cuts wire, one removes insulation. Every electrical toolbox needs both. For home wiring, a good pair of lineman’s pliers or diagonal cutters plus a quality manual or automatic wire stripper will handle every wiring job you encounter. Match the tool to the wire gauge, inspect conductor ends after stripping, and always work on de-energized circuits.
