Cable stripper Knipex 12 21 180, 180 mm, plastic handles, 366 g, black/red

The Knipex 12 21 180 cable stripper is a compact handheld tool designed for precise removal of insulation from electrical cables and conductors. With an overall length of 180 mm and ergonomically shaped black/red plastic handles, it offers a balance of control and portability for electricians and technicians working on installation, repair and maintenance tasks. The aluminium pliers body and oil-hardened special tool steel blade deliver durability while keeping the tool lightweight at approximately 366 g.

Advantages

This cable stripper features replaceable blades configured for four or six different conductor cross-sections, enabling adaptable stripping for a range of wire sizes. Precision-ground blade shapes reduce the risk of damaging conductors, so even multi-stranded wires are stripped cleanly and gently. Integrated clamping jaws hold the wire securely during stripping, and a length stop provides consistent stripping length for repetitive tasks. A return spring resets the tool to the starting position after each operation, improving workflow and reducing hand fatigue.

Suitable for

• Stripping insulation from single- and multi-stranded electrical conductors
• On-site cable preparation for installations and repairs
• Repetitive stripping tasks requiring consistent stripping length
• Electricians, maintenance technicians and industrial wiring work

Key specifications

• Total length: 180 mm
• Weight: approx. 366 g
• Handle material: plastic (black/red)
• Pliers body material: aluminium
• Blade material: special tool steel, oil-hardened
• Replaceable blades for 4 or 6 conductor cross-sections
• Precision-ground blade geometry for gentle stripping of multi-stranded conductors
• Clamping jaws to hold wire during stripping
• Adjustable length stop for constant stripping length
• Return spring for automatic reset

How to use

Select the replaceable blade setting that matches the conductor cross-section and position the cable between the jaws. Close the handles to engage the clamping jaws and the stripping blade, then withdraw the tool or slide it along the conductor to remove the insulation to the required length set by the length stop. Release the handles to allow the return spring to open the tool and remove the stripped conductor. For repetitive work, set the length stop once to achieve consistent results without remeasurement.

Usage recommendations

Inspect blades periodically and replace them when wear reduces stripping quality. Use the blade setting appropriate to the conductor type to avoid nicks or damage to the wire. Keep the tool clean and lightly lubricate pivot points if recommended by regular maintenance schedules. Store in a dry place to preserve the aluminium body and the oil-hardened blade.