Wire rope/ cable cutter, drop forged chrome vanadium steel.
200mm overall length, for cutting wire ropes etc. from 1.0 to 4.5mm in diameter.

This is a high quality tool with each jaw and one side of the handle made in a single forging for great strength; (not forged jaws bolted or riveted to a pressed steel handle which can easily bend or distort like the vast majority of apparently similar tools listed online!).