supply of , set of thread plug gauge and ring gauge , material - tool steel to spec is:3748 /1990, hrc 50/55. firm to provide calibration certificate from nabl accredited laboratory. o ne set consists of 10 items as furnished below (i) thread plug gauge go & no-go , size - 1 x 8 unc 2b for holes of bg freight stock axles to rdso drg. no. wd-89025- s-02, qty: 01 no (ii) t hread ring gauge, go & no-go size - 1 x 8 unc 2a for bg freight axle screw -, qty: 01 set (iii) thread plug gauge go & no-go size m8 x1.25 6h-01 , qty: 01 no (iv) thread plug gauge go & no-go size m20 x 2.5 6h-01 , qty: 01 no (v) thread plug gauge go & no-go size m16 x2.0 mm 6 h-01 , qty: 01 no (vi) thread ring gauge go & no-go gauges size m16 x2.0 mm 6g , qty: 01 set ( vii) thread ring gauge go & no-go size m20 x 2.5 mm 6g , qty: 01 set (viii) thread ring gauge go & no-go size m8x1.25 mm 6g , qty: 01 set (ix) thread plug gauge go & no-go size 1-1/8 x 7 unc , qty: 01 no (x) thread ring gauge go & no go size 1-1/8 x 7 unc qty: 01 set. [ warranty period: 12 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]