supply of manufacturing and supply of complete set of inspection gauges as per rdso drg no.t-6280 part) for 6400mm overriding switch 1 in 8.5 t-4966, one set consists of 1. gauge no.-1/a - end template-y at point r (a.t.s), 2. gauge no.1b- end template-y at point r (a.t.s), 3. gauge no.2-under cutting of tongue rail foot, 4. gauge no.3-13 mm head thickness (at 476.5 mm from a.t.s), 5. gauge no.6-12r toe radius at a.t.s, 6. gauge no.33-tongue rail head thickness (at 2348 mm from a.t.s) list of gauges as per rdso and enclosed as annexure-i.manufacturing and supply of complete set of inspection gauges as per rdso drg no.t-6280 part) for 6400mm overriding switch 1 in 8.5 t-4966, one set consists of 1. gauge no.-1/a - end template-y at point r (a.t.s), 2. gauge no.1b- end template-y at point r (a.t.s), 3. gauge no.2-under cutting of tongue rail foot, 4. gauge no.3-13 mm head thickness (at 476.5 mm from a.t.s), 5. gauge no.6-12r toe radius at a.t.s, 6. gauge no.33-tongue rail head thickness (at 2348 mm from a.t.s) list of gauges as per rdso and enclosed as annexure-i.,manufacturing and supply of complete set of inspection gauges as per rdso drg no.t-6280 part) for 6400mm overriding switch 1 in 8.5 t-4966, one set consists of 1. gauge no.-1/a - end