91566-1 is a CERTI-CRIMP hand tool designed for crimping terminals with consistent and repeatable crimp performance. The tool features bottoming die technology that ensures proper crimp force is applied to terminals, resulting in specified tensile strength, mechanical stability, and electrical conductivity. It includes a ratchet system that helps operators use the tool according to the terminal designer's intent. The tool comes with documentation of critical crimp area dimensions and handle pressure settings on a Certificate of Certification. Regular maintenance and certification cycles are recommended at 8 months or 1,000 cycles, whichever comes first. This tool is ideal for applications requiring reliable and repeatable crimping in wire processing operations.