RS PRO Indent Crimp Tool, Nickel Plated Steel, 190mm, 0.4 - 1.29 mm², 26 - 16 AWG, MIL-C-22520/2, 531-403

The RS PRO 531-403 indent crimp tool is a professional-grade hand tool engineered for precise crimping of electrical contacts. Featuring an 8-indent mechanism, this crimp tool is optimized for 26 to 16 AWG wire sizes, easily handling a wire cross-section from 0.4 to 1.29 mm². Its design adheres to the stringent MIL-C-22520/2 standard, delivering repeatable, gas-tight electrical crimps vital for reliable cable assemblies and electrical connections in demanding environments.

Crafted from nickel plated steel, the tool demonstrates superior corrosion resistance and long-term durability, making it suitable for regular use in manufacturing, industrial maintenance, and field service applications. The 190 mm overall length provides excellent leverage, and the ergonomic blue plastic handle grips ensure user comfort throughout extended tasks. Positioners are anodised and fixed in place using a precise bayonet action, facilitating consistent crimp barrel height for each operation.

This indent crimp tool does not feature an adjustable ratchet, which simplifies its construction and enhances reliability for repetitive crimping work. The 40 mm handle width promotes a steady grip, reducing user fatigue. Its design supports a range of wire gauges, accommodating projects and repairs across many sectors including electrical installations, cable assemblies, and routine maintenance.

Applications for the RS PRO 531-403 crimp tool are diverse - spanning industrial manufacturing, commercial facility maintenance, laboratory installations, electrical panel building, and field service in construction or water treatment environments. Its precise crimping action ensures that both conductor and insulation crimps are properly formed, delivering both reliable electrical performance and mechanical strain relief to resist vibration and tension during operation.

For ongoing tool performance and longevity, users should regularly lubricate axles and all movable parts, especially when the tool is exposed to contaminants. It is recommended to check and adjust crimping die nests as needed, and to use a light, mineral-free oil for lubrication. This maintenance helps sustain the tool’s precision even after tens of thousands of cycles.

Precision 8-indent mechanism for uniform crimping of various electrical contacts. Compatible with wire sizes from 0.4 to 1.29 mm² (26 - 16 AWG). Engineered for industrial, laboratory, and commercial uses where high-quality crimps are required.

Meets MIL-C-22520/2 standards for consistent, reliable electrical connections. Durable, nickel plated steel body and ergonomic blue plastic grips. Fixed anodised positioners for repeatable crimp barrel settings and ease of operation.

Simple design without an adjustable ratchet offers robust, reliable performance. Tool measures 190 mm in length and 40 mm in handle width. Ideal for maintenance, repairs, and new installations of electrical and electronic systems.

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