supply of gaugegauge,thread profile gauge external (go & nogo) size - 39 x 3 mm (ring gauge). wear limit - 0.5 mm. ref. drg. no. w/bd 353 material - tool steel/ stainless steel & hardened supply with calibration certifi cate valid for min. 01 year issued from nabl approved lab [ warranty period: 30 months after the date of delivery ] ] , profile gauge with - 15 mm. adjustable projection for root of the hook near the point of conta ct with bent link (gauge for draw hook). ref. drg no. rdso - sk - 79062 alt-05 & 99007. material tool stee l. is - 3748/90, hardness - 50 / 55 hrc supply with calibration certificate - valid for min. 01 year issued fro m nabl approved lab [ warranty period: 30 months after the date of delivery ] ] , gauge for 46 mm dia pin. required size - nogo 44.0 mm (snap type) ref. drg. no. rdso - s k 79068 alt-08 & sk 99002 material - tool steel, is 3748/90 hardness - 50/55 hrc. supply with calibration certificate - valid for min. 01 year issued from nabl approved lab [ warranty period: 30 months after th e date of delivery ] ] , gauge (go & nogo) for bent link u-gap - 78 mm (gauge for screw coupling) required size: go - 77 mm & nogo - 85 mm ref. drg. no. rdso sk - 79068 alt-08 & sk 99002 material - tool steel, is 37 48/90 hardness - 50/55 hrc. supply with calibration certificate - valid for min. 01 year issued from nabl a pproved lab [ warranty period: 30 months after the date of delivery ] ] , thread profile ring gauge (go - 01 no. & nogo - 01 no.), required size: m39 x 3 mm (exter nal), wear limit - 1mm ref. drg. no. rdso sk 79063 alt-4 & sk 99007 material - tool steel, is 3748/90 har dness - 50/55 hrc. supply with calibration certificate - valid for min. 01 year issued from nabl approved l ab [ warranty period: 30 months after the date of delivery ] ]