Three Safe Methods for Cutting Armored Cables
February 5, 2026
Armored cables present unique challenges when cutting due to their protective metal sheathing. This comprehensive guide explores three proven methods for clean, safe cuts while protecting the internal wiring.
Method 1: Professional Armored Cable Cutters
For frequent armored cable cutting, specialized cutters offer the most efficient solution. These tools provide:
- Precision cutting without damaging internal wires
- Consistent results with minimal effort
- Built-in safety features
Step-by-Step Process:
- Accurate Measurement: Mark cutting locations clearly using permanent marker. Measure twice to ensure precision.
- Proper Installation: Secure the cable in the cutter's guide channel, aligning the blade with your mark.
- Controlled Cutting: Rotate the handle smoothly for one complete revolution to sever the armor.
- Clean Removal: After cutting, slide off the excess armor to expose approximately 15cm of internal wiring.
Method 2: Using Diagonal Cutters
For occasional cuts, standard diagonal cutters can be effective with proper technique:
Key Steps:
- Mark the cutting position clearly on the armor.
- Bend the cable at the mark to create initial separation in the armor.
- Insert cutter blades carefully into the created gap.
- Work gradually around the circumference to complete the cut.
Method 3: Emergency Saw Blade Method
When no proper tools are available, a saw blade can serve as a last resort:
Safety-Focused Approach:
- Mark the cutting line clearly.
- Bend the cable to create a starting point for the saw.
- Cut gradually in sections, monitoring depth carefully.
- File down any sharp edges after cutting.
Critical Safety Considerations
Regardless of method, always:
- Confirm power is disconnected before cutting
- Wear protective eyewear and gloves
- Inspect cables thoroughly after cutting
- Work in well-ventilated areas
Method Comparison
| Method | Advantages | Disadvantages | Best For |
|---|---|---|---|
| Professional Cutters | Fast, precise, safest | Higher initial cost | Frequent use |
| Diagonal Cutters | Low cost, accessible | Requires more skill | Occasional use |
| Saw Blade | Always available | Highest risk of damage | Emergency only |
Pro Tips for Better Results
- Wrap cutting area with tape to prevent armor fraying
- Apply lubricant to reduce friction during cutting
- Always deburr cut edges for safety
- Purchase quality cables from reputable manufacturers
By selecting the appropriate method and following proper techniques, armored cable cutting can be performed safely and efficiently for any electrical project.