Abstract: A quick release nut (1) includes a pair of body members or segments (2, 3) having internal surfaces (4) to be placed around and engage the shaft of a bolt. The segments (2, 3) are movable between an operative position and an inoperative position in which the segments (2, 3) are spaced further apart. A pin (8) and quick release cartridge (15) on segment (2) slide within corresponding channels (12, 18) in segment (3), and a pair of ball bearings (25, 26) are released from the groove (28) by pushing the end of pin (21) axially relative to the quick release cartridge (15).

Abstract: This invention relates to torque wrenches, and more particularly to torque wrenches that are bi-directional in operation. A torque wrench comprises a housing in which is mounted a rotatable ratchet mechanism, a first lever and a first drive for applying a driving force to the first lever to pivot the first lever reciprocatingly between a rest position and a fully displaced position. Further included is a second lever and second drive for applying a driving force to the second lever to pivot the second lever reciprocatingly between a rest position and a fully displaced position.