supply of tubular alloy construction torque wrench having multiple operational range with non turning back facility and safe locking of setting values by latching function on the rotary assembly with mandatory flexibility of interchanging facility within single torque wrench with 3 / 4 sq. drive for 8w-detc & electric locomotives having technical specifications as follows: - 1. torque range : range to operate between 400 nm to 1000 nm 2. overall length should be less than 1850 mm. 3. weight of device alongwith reversible ratchet head : maximum 10.5 kgs. note: 1. each above mentioned torque wrench to be supplied with reversible ratchet head. 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. [ warranty period: 30 months after the date of delivery ] => limited