tender for light weight spanner for fish plate bolts as per following specification-(1) double open ended with15 degree angle, (2) size 36 mm & 41 mm at either end, (3) length 680 mm(min.)-760 mm(min.), (4)manufactured by forging process with black phosphate finishing, (5) heat treatment with controlled oil bothprocess, hardness of final product 380-400 bhn, (6) approx, weight 1300 gm plus/minus 5, (7) capacity tohandle 500 nm torque without breakage.