Circlip Pliers Knipex 46 21 A31

The Knipex 46 21 A31 Circlip Pliers are professional hand tools designed for fitting and removing external circlips on shafts. Constructed from forged chrome vanadium steel with oil hardening, these pliers measure 200 mm and weigh 219 g, offering a balance of strength and handling. The pliers feature non-slip, solid tips and a plastic handle for comfortable grip, providing stability when working with circlips in diameters from 3 to 140 mm.

Advantages

These circlip pliers combine a forged, solid-style body with hardened tips for durable performance and long service life. The chrome vanadium steel construction and oil-hardening process increase wear resistance and maintain tip integrity under repeated use. The plastic handle improves operator comfort and control, while non-slip tips reduce the risk of the circlip slipping during installation or removal. The tool’s 200 mm length offers good leverage for controlled operation across a wide range of circlip sizes.

Suitable for

• Installing and removing external circlips on shafts with diameters from 3 to 140 mm
• Maintenance and repair of machinery and equipment in workshops and industrial settings
• Automotive repair tasks involving retaining rings and shaft assemblies
• Routine servicing of agricultural and construction equipment

Key specifications

• Overall length: 200 mm
• Weight: 219 g
• Material: forged chrome vanadium steel, oil-hardened
• Tip style: solid, non-slip
• Handle: plastic for improved grip
• Circlip application range: 3–140 mm diameter

How to use

Select the appropriate pliers orientation for external circlips and position the tips into the circlip holes or grooves. Squeeze the handles to compress the circlip and fit it onto the shaft or to expand it for removal, ensuring steady control and alignment. Keep even pressure on the handles and verify that the circlip seats securely in its groove after installation. Regularly inspect the tips for wear and ensure the tool remains clean and lightly lubricated to maintain smooth operation.

Usage recommendations

Use protective eyewear when installing or removing circlips. Avoid using the pliers on hardened or damaged circlips beyond their intended diameter range. Store the tool in a dry place and perform routine checks on tip condition to ensure reliable and safe performance.