supply of set of gauges for pinion 20 teeth (gear ratio 20/91) as per bhel drawing no.14391680002 and rdso mp.mi-129/86, , set of gauges for pinion 20 teeth (gear ratio 20/91) as per bhel drawing no.1439 1680002 and rdso mp.mi-129/86, material tool steel to is 3748/90 hardness 50/55 hrc. each set consisting of 02 items: [1] profile checking gauge (p value) with feeler gauge size 0.20 mm, 0. 25 mm, 0.30 mm, 0.35 mm, 0.40 mm = 01 no./set [2] tooth spacing `k value checking go gauge siz e-go 56.083 mm / 56.210mm = 01 nos./set. along with calibration certificate from approved na bl. [ warranty period: 30 months after the date of delivery ] ]