Wire pulling and tensioning tool

A tool for pulling a wire W through a connector C or a terminal has a pair of levers 20, 24 pivoted together, one lever having an abutment portion 23 for location of the connector and the other lever having clamping members 26, 28 for gripping the wire. One lever has a handgrip portion 25 articulated to a shank portion 40 for movement between an in-line position and a position inclined towards the handgrip portion 22 of the other lever. Spring-loaded latching means 45 are provided between the handgrip portion and the shank portion for disengagement when the tension in the wire reaches a value set by an adjustment means 72 for loading the spring means and indicated by a scale 74. The latching means may comprise at least one bar (49, 50 fig 3) at the end face of the handgrip portion, which protrudes into a groove (53, fig 3) in the end face of the shank portion.