About this item Professional Crimping Tool: Each ferrule tool kit includes a quadrilateral wire crimping tool and 1200 pieces of insulated terminals, compatible with both insulated and uninsulated sleeve terminals. This electrical tool works with wire ferrules in the range of AWG 23 – AWG 7 (0.25–10 mm²). Self-Adjustable Ratchet Design: The ferrule crimping tool completes crimps by squeezing the handle through a full ratcheting cycle. The self-adjusting ratchet mechanism enhances accuracy and reliability, automatically adapting to the correct terminal diameter to help prevent waste. Ergonomic Handle Design: The crimping tool features a handle made of PP and TPR materials, providing a non-slip, comfortable grip. Utilizing leverage principles, it reduces hand fatigue during use. An internal release trigger allows quick jaw opening for efficient operation. Portable Wire End Set: The kit includes a durable sorting box with labeled compartments for easy storage and transport. It contains 1200 wire end sleeves in the most commonly used sizes. The ferrule connectors are constructed from copper and polypropylene for durability and reliable performance. Multifunctional Use: This wire ferrule and crimping tool kit is ideal for use with various equipment switches, batteries, automotive systems, household electronics, components with pins, DIY projects, and solderless repairs. It is a practical solution for electricians, contractors, and builders working with terminals and connectors.