supply of supply of set of master setting rings for zero setting of bore gauges to 6fra 6068 traction motor , supply of set of master setting rings for zero setting of bore gauges to 6fra 6068 traction motor. ---01 set. set consist of 8 items as follows consists internal dia. of sizes: (i) 320mm, (ii) 305 mm, (iii) 215mm, (iv) 205mm, (v) 184mm, (vi) 180 mm,(vii)105 mm (viii)100mm tolerance (+/-) 0.005mm. material as per is is 3748 1990 and general tolerance as per is 3485 1983/ din 2250 part-i. quantity 01 number of each size to be supplied calibration certificate from nabl approved laboratory to be submitted along with material. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]