This hydraulic wire crimping tool provides hexagonal confining pressure with 13 pairs of hexagon crimping dies (AWG: 9, 8, 6, 4, 2, 1/0, 2/0, 4/0, 250MCM, 300MCM, 350MCM, 500MCM, 600MCM) Crimping range is 9 AWG to 600 MCM, Stroke is 0.87 inch. Oil return valve relieves pressure and allows the piston to quickly reset. The die set can be easily replaced by one-way fixed latch. The vinyl-dipped grip is very comfortable and easy to use and won't slip. This 16T cable lug crimping tool is made of high quality #45 steel, and the battery cable crimper is sturdy and durable enough to crimp most cables and last a lifetime of use. The crimper tool is great for battery, welding cables, power Wires and electrical cables, etc. Even can be rotated 180° freely for narrow space working.