DESIGNED FOR HEAT SHRINK CONNECTORS - Single wide crimping die will ensure strong crimps without damaging heat shrink insulation. PRECISION CRIMPING DIES - High precision technology allows to achieve excellent crimping accuracy. CHANGE CRIMPING DIES IN SECONDS - Patented magnetic locking mechanism allows to swap crimping dies effortlessly. COMPATIBILITY - Individual crimping dies will work with Wirefy crimping tools with magnetic locking mechanism: Wirefy-CRMP-ND and our Crimping Tool Sets. These dies are not compatible with the fixed die crimping tools. International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions., Weight: 0.11 pounds, Manufacturer: Wirefy