Designed for cutting, stripping, and crimping RJ11, RJ12, RJ22, and RJ45 connectors onto CAT3, 5e, and CAT6 cables, this connector crimper is perfect for any network installer. This crimper features the following: Ratcheted, ultra-stable platform for consistent terminations with low hand force Tool includes built-in jacket strippers for round and flat cables 22 AWG-28 AWG (0.32-0.64 mm diameter) 2 crimping slots: one for 8 position modular connectors and one for 6 and 4 position modular connectors Durable all-steel construction with heavy duty cutting blade good for 3,000 cuts Dual-component ergonomic cushion grip handles for greater comfortCable Parameters: 22 AWG-28 AWG (0.32 mm-0.64 mm diameter) flat or round, solid or stranded, telephone or data