Time for something a bit different! This Circlip Tool (for internal and external circlips up to 1000 mm nominal size) definitely isn't our most recognisable tool ;) but it's great for use in heavy engines where very high forces and torques are transmitted with large shafts and bearings (wind turbines, tidal power stations, generator construction, hydropower stations, large machine construction shipbuilding and even aerospace). You can choose to operate it by hand, with an Allen key, ratchet wren