supply of set of different types of ergonomic , set of different types of ergonomic, lightweight tools conforming to railway approved drawings, consisting of the following: 1. ergonomic lighte st weight tool with lifetime warranty as per southern railway drawing no. sr.sk.m&p no.1 (make: dinisha / cyprus / griffin or equivalent) 2. ergonomic lighte st weight tool with lifetime warranty as per southern railway drawing no. sr.sk.m&p no.2 (make: dinisha / cyprus / griffin or equivalent) 3. ergonomic lighte st weight tool as per southern railway drawing no. sr.sk.m&p no.3 (make: dinisha / cyprus / griffin or equivalent) 4. ergonomic lightest weight tool with lifeti me warranty as per southern railway drawing no. sr.sk.m&p no.4 (make: dinisha / cyprus / griffin or equivalent) 5. ergonomic lightest weight tool with lifeti me warranty as per southern railway drawing no. sr.sk.m&p no.6 (make: dinisha / cyprus / griffin or equivalent) 6. ergonomic lightest weight tool with lifeti me warranty as per eastern railway drawing no. er.sk.no.kkk/misc-10/04 (make: dinisha / cyprus / griffin or equivalent) [ warranty period: 30 months aft er the date of delivery ] ]