supply of single integrated one piece al-v alloy wrenchsingle integrated one piece al-v alloy wrench, single integrated one piece al-v alloy wrench for variable range of torquing with capability of non turning back and safe locking with latch of the setting values on the rotary assembly . interchanging ability within single torque wrench with 1 / 2 sq. drive & sq. 3 / 4 drive for 8w-detc & electric locomotive is mandatory having technical specifications as follows: - 1. torque range : range to operate between 80nm to 400 nm 2. overall length should less than 655mm 3. weight of device alongwith heavier reversible ratchet head out of the 1 / 2 sq. drive & sq. 3 / 4 drive : maximum 2.5 kgs. note: 1. each above mentioned torque wrench to be supplied with reversible ratchet head one no. each of 1 / 2 sq. drive & 3 / 4 sq. drive. 2. make of armstrong / ridgid / hazet / gedore / apex / facom / proto / bravo will only be suitable. 3. calibration certificate having validity for one year from govt approved source / nabl approved lab to be supplied alongwith the supply of the material. => limited