Features: This ratchet crimping tool is ideal for insulated and bare terminals. Equipped with an adjustable clamping compression mechanism and ratchet lock up/down, high-carbon steel jaws, handles with black oxide finish and ABS grip sleeves make this tool easy and convenient to use. How does it work? To use this crimping tool, each wire is first placed in the connector. When all the wires are in the socket, the connector with the wires is placed in the crimping tool, and the handles are pressed together. Crimp pierces the plastic connector and holds each of the wires, allowing data to be transmitted through the connector. Crimping tool with special steel tool, with special quenching and annealing treatment, high-quality, precision crimping - The part with handle is specially designed for ergonomic and scientific lever to ensure optimal torque transfer and reduced fatigue during operation - With the effort of ratchet device, so that the precision of the pressure die is actually repeated, but also to maintain the of crimping standards. pressure adjustment device, according to the actual need to adjust the pressure size, efficient and labor-saving clamping die with precise dewaxing of casting molding, the accuracy of each die is consistent, sophisticated and ! - Lead-free environmental certification, suitable for lead-free operation.6.3mm: 0.75-1.5mmsup2;/AWG 20-16; 4.8mm : 0.75-1.5 mmsup2;/ AWG 20-16; 2.8mm : 0.5 - 1.0 mmsup2;/AWG 22-18; Note: Please allow 0-1cm error due to manual measurement. Pls make sure you don't mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package Included:Type A :600 Pcs Terminals OrType B: SN-48B crimping pliers OrType C: 600 pcs. Terminals + SN-48B for P crimping