>> P.151
OpticalParallelsSERIES157Typicalapplication•Designedtoinspectparallelismandatnessofmeasuringfacesofmicrometers.Fordetails,referto“QuickGuidetoPrecisionMeasuringInstruments”onpage02-81.•Eachsetconsistsof4sizestoenabletestingparallelismatquarter-turnpositionsofthemicrometerspindle.SPECIFICATIONSMetricCodeNo.157-903157-904InchCodeNo.157-901157-902Rangeofmicrometertobechecked(mm)0-2525-50Rangeofmicrometertobechecked(in)0-11-2Sizesofparallelsincludedinset(mm)12.00,12.12,12.25,12.3725.00,25.12,25.25,25.37Sizesofparallelsincludedinset(in)0.5000,0.5062,0.5125,0.51871.0000,1.0062,1.0125,1.0187157-903Diameter(mm)Flatness(μm)Parallelism(μm)ø300.10.2Diameter(mm)Flatness(μm)Parallelism(μm)ø300.10.2Remarks(mm)For25For50Remarks(mm)For25For50Accessories,OptionsNote:Alsoavailableindividually,usingthefollowingCodeNo.MetricCodeNo.157-101157-102157-103157-104InchCodeNo.157-109157-110157-111157-112Thickness(mm)12.0012.1212.2512.37Thickness(in)0.50000.50620.51250.5187MetricCodeNo.157-105157-106157-107157-108InchCodeNo.157-113157-114157-115157-116Thickness(mm)25.0025.1225.2525.37Thickness(in)1.00001.00621.01251.0187OpticalFlatsSERIES158•Usedforinspectingtheatnessofmeasuringfaceswithhighaccuracy.Fordetails,referto“QuickGuidetoPrecisionMeasuringInstruments”onpage02-81.SPECIFICATIONSMetricCodeNo.158-117158-118158-119158-120Thickness(mm)Diameter(mm)12154560Flatnessgrade(μm)0.20.10.20.1158-118InchCodeNo.158-122158-124Thickness(in)0.50.6Diameter(in)1.82.4Flatnessgrade(in)0.00000402-70Typicalapplication
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