supply and delivery of different types of special tools required for overhauling of units for stage i stage ii power house jaldhaka hydel project wbsedcl , chain-pulley block, capacity - 10 ton, no of falls- 4, grade 80 load chain, zinc plated hand chain, make- indef p-block , polyester webbing sling with both end standard loop, capacity- 10 ton, length- 8 mtr. , ht hex stud bolt m52x160 full thread ( grade-10.9 ) , ht hex nut & bolt m36x90 with double plain washer & spring washer ( grade 10.9 ) , ht hex nut & bolt m20x75 half thread with plain washer & spring washer ( grade 10.9 ) , ht hex nut & bolt m18x75 half thread with double plain washer & spring washer ( grade 10.9 ) , ht hex nut & bolt m16x70 half thread with double plain washer & spring washer ( grade 10.9 ) , ht hex jacking bolt m30x160 full thread ( grade 10.9 ) , ht hex jacking bolt m30x180 full thread ( grade 10.9 ) , ht hex jacking bolt m24x140 full thread ( grade 10.9 ) , ht hex jacking bolt m24x210 full thread ( grade 10.9 ) , ht hex jacking bolt m12x100 full thread ( grade 10.9 ) , slugging ring spanner, size-36 mm, make-taparia , slugging ring spanner, size-46 mm, make-taparia , slugging ring spanner, size-55 mm, make-taparia , slugging special type ring spanner, size-55 mm ( as per sample ) , open ended sluggingspanner, size-55 mm, make-taparia , slugging ring spanner, size-80 mm, make-taparia , wire rope sling ( steel core ) , 6 x 19, nominal diameter –8 mm, both end soft eye, ungalvanized, capacity – 0.5 ton, length – 5 meter, make-usha martin , wire rope sling ( steel core ) , 6 x 19, nominal diameter –18 mm, both end soft eye, ungalvanized, capacity – 3.0 ton, length – 5 meter, make-usha martin