MEASURING INSTRUMENTS CATALOG No.E2021
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B-55BMitutoyo reserves the right to change any or all aspects of any product specication, including prices, designs and service content, without notice.MicrometerThe origin of Mitutoyo’s trustworthy brand of small tool instrumentsGroove MicrometersSERIES 146• Flanged spindle and anvil for measuring width and location of grooves inside bores and tubes.• Two-directional ratchet stop.• For ID and OD (except for 0 - 25 mm) measurement, a master gage is required for adjusting the reference point.Flanges (anvils)146-221146-222SPECIFICATIONSMetricOrder No.Range Inside (mm)Range Outside (mm)Graduation (mm)Maximum permissible error JMPE (µm)Flange (mm)Non-rotating spindle146-2211.6 - 26.50 - 250.01±10ø6.35146-222ø12.7146-22326.5 - 51.525 - 50146-22451.5 - 76.550 - 75146-22576.5 - 101.575 - 100InchOrder No.Range Inside (in)Range Outside (in)Graduation (in)Maximum permissible error JMPE (in)Flange (in)Non-rotating spindle146-2310.055 - 1.050 - 10.001±0.0004ø0.25146-232ø0.5146-2331.05 - 2.051 - 2146-2342.05 - 3.052 - 3146-2353.05 - 4.053 - 4Technical Data• Parallelism: 10 μm/0.0004 inStandard accessoriesSpanner (301336), 1 pc.L()25(115)50(90)75(65)100(40)DIMENSIONSUnit: mm(34.5)2517473ø5ø15ø103219.50.750.75ø3.5ø6.35ø6.35ø18ø9.7146-221Lø12.7ø6.35ø12.70.750.7532ø10ø1534717(ℓ)ø18ø9.7146-222, 146-223, 146-224, 146-225

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