supply of set of special ratchet spanner.set of special ratchet spanner.,set of special ratchet spanner of size 3/4 inch square drive (bolt size m24) for axle guiding bo lt (rh & lh) for wap-7/wag-9 locomotives as per drawing attached having features: (1) operates with the h elp of reverse and forward mechanism by changing the position (2) high strength alloy steel with confirmi ng test certificates from nabl approved lab for en-47 material composition : carbon range 0.450-0.550, c hromium 0.800-1.200 and vanadium 0.150 minimum. [ warranty period: 30 months after the date of deli very ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]