D-67DMitutoyo reserves the right to change any or all aspects of any product specication, including prices, designs and service content, without notice.Depth GageA standard measuring tool of industry• Optimal for hole, narrow groove and step measurement.Dial Depth GageSERIES 772117224723172227220 and 7221 allow the mounting position of a dial indicator to be varied.Example of use7214SPECIFICATIONSMetric Order No.Range (mm)Graduation (mm)Accuracy (µm)Stroke (mm)Measuring force (N)BaseContact point Note 1Extension rod Note 2Indicator Note 3(dial indicator) W (mm)T (mm)Flatness (µm)Mounting position of a dial indicator 72100 - 100.01±15101.4 401651Provided with a needle point (137413)—2902SBfor Depth Gage72110 - 200 63.5Provided with a carbide-tipped ball point(21JAA224)5 pcs. (10, 20, 30, 30, 100 mm)7212101.672130 - 210±30302.5 63.5Provided with a carbide-tipped ball point(21JAA225)3 pcs. (30, 60, 90 mm)2952SBfor Depth Gage7214101.672200 - 200±15101.4100182Provided with a carbide-tipped ball point(21JAA224)5 pcs. (10, 20, 30, 30, 100 mm)2902SBfor Depth Gage7221150372220 - 10ø161Provided with a needle point (137413)—7223ø25Provided with a carbide-tipped ball point(21JAA224: 17 mm)7224ø4072310 - 200563.5165 pcs. (10, 20, 30, 30, 100 mm) Interchangeable contact point(21JAA226: 22 mm)1162Tfor Depth Gage(Back plunger type)Inch Order No.Range (in)Graduation (in)Accuracy (in)Stroke (in)Measuring force (N)BaseContact point Note 1 Extension rod Note 2Indicator Note 3 (dial indicator) W (in)T (in)Flatness (in)Mounting position of a dial indicator7217S0 - 80.001±0.00212.52.50.630.00021Carbide ball point(21JZA242)3 pcs. (1 in, 2 in, 4 in)2904SBfor Depth Gage7218S47237T0.21.42.5Provided with a carbide-tipped ball point(21JZA242: 0.7 in)4 pcs. (0.5 in, 1 in, 2 in, 4 in)Interchangeable contact point(21JZA243: 0.9 in)1168Tfor Depth Gage(Back plunger type)7238T4Note 1Caution should be exercised when exchanging a contact point of a Depth Gage (Dial/Digimatic Indicator):• If a different size contact point is mounted, displacement of the contact point from the base contact surface will be changed and as a result, measurement range may not be maintained.• A contact point cannot be mounted to a Depth Gage if its diameter is too large for the hole diameter of the base. • Parallelism adjustment with the bottom face of the base is required when mounting a at contact point such as the at/needle or carbide-tipped contact point.Note 2Caution should be exercised when using an extension rod:• If the total length of the extension rod exceeds 110 mm (4.5 in) use the instrument in a vertical position (contact point downward).• Use a master gage (such as gauge blocks) to perform zero-setting when the extension rod is mounted. (Master gage is an optional accessory.)Note 3Caution should be exercised when indicators are used on a Depth Gage: • When the indicator is exchanged and a longer extension rod is connected, the contact-point may deect signicantly with an adverse effect on measuring accuracy.• Order No.543-400B/543-402B for Depth Gage has a measuring force less than 1.5 N.Extension rodContact pointMaster gage(optional accessory)

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