supply of digital outside micrometerdigital outside micrometer,digital outside micrometer range: 300 - 400 mm, least count: 0.001mm, code no. 340-520 of m/s.mitutoyo make or its equivalent in other makes. features:- 1) wide measuring range with interchang eable with anvils. 2) measuring face of the spindle is carbide tipped. 3) ip 65 water /dust protection. 4) equi pped with ratchet stop for constant measuring force. 5) oil resistant material used for all plastic parts. 6) e xtended battery life of approximately 2.4 years. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]