Diagonal pliers Knipex 79 52 125, 125 mm length, chromium-vanadium steel, plastic handles

Knipex 79 52 125 diagonal pliers are precision-cutting tools designed for ultra-fine work in electronics, fine mechanics and detailed maintenance tasks. With a compact overall length of 125 mm and a pointed head profile, these diagonal pliers provide access in tight spaces and controlled cutting force for delicate wires and tiny components. Manufactured from chromium-vanadium steel and featuring induction-hardened cutting edges, they combine durability with the accuracy needed for exact cuts. The tool includes a lead catcher to prevent uncontrolled loss of cut wire ends and ergonomically optimised plastic handles for comfortable handling.

Advantages

The pliers feature very precisely ground and sharp cutting edges with minimal bevels for exact cutting on delicate electronic components; the cutting edges are induction hardened to approximately 64 HRC for long life and reliable performance. At about 20% lighter than conventional electronics pliers, these diagonal pliers reduce hand fatigue during repetitive tasks. A bolted joint with carefully manufactured joint surfaces ensures even, low-friction movement across the full opening range, while a smooth-running double spring provides gentle and consistent opening. Ergonomically optimised multi-component plastic handles improve grip and handling in precision work.

Suitable for

• Cutting fine wires and leads in electronics assembly and repair
• Precision trimming of small components in fine mechanics and watchmaking
• Maintenance, prototyping and hobby tasks requiring exact, clean cuts
• Working in confined spaces where a compact, pointed head is needed

Key specifications

• Overall length: 125 mm
• Material: chromium-vanadium steel (forged)
• Cutting edge hardness: approx. 64 HRC (induction hardened)
• Head type: pointed
• Weight: approx. 58 g
• Handle type: ergonomically optimised plastic multi-component handles
• Joint: bolted joint with precision joint surfaces
• Spring: smooth-running double spring
• Feature: integrated lead catcher to retain cut wire ends

How to use

Position the cutting edges around the wire or component to be cut as close to the support point as possible for a precise, clean cut. Apply controlled pressure on the handles until the cutting edges meet, then release to allow the double spring to open the pliers gently. For flush cutting of component leads, align the pointed head so the cutting edges approach the material at the correct angle; avoid twisting the tool during the cut. After use, wipe the cutting edges clean and store the pliers in a dry place to maintain edge condition.

Usage recommendations

Use these diagonal pliers exclusively for cutting soft and hard wires and small component leads. Do not use them for cutting hardened steel cables, nails or other materials beyond the specified application to avoid damaging the cutting edges. Periodically check and, if necessary, clean the bolted joint and apply a light machine oil to maintain smooth movement.