F-55FMitutoyo operates a policy of continuous improvement that aims to provide the customer with the benet of the latest technological advances.Therefore the company reserves the right to change any or all aspects of any product specication without notice.SPECIFICATIONSDescriptionOrder No.Series 1 (ø31, ø36, ø40mm)Series 2(ø57mm)Series 3, 4 (ø78, 91mm)Flat Back101211: a=2.2136872: for water-proof type191559: for 1911TB-10,1913TB-10, 1921TB-10,1923TB-10, 1925TB-10137906: for 1003TB101039: a=2.521AZB231: for water-proof of S type192910:(F type waterproof model)100836: a=3.0Lug-on-Center Back101210: metric type101307: inch type190561: for 1911T-10,1913-10190139: 1921T-10,1923T-10, 1925T-10137905: for 1003T101040: metric type101306: inch type21AZB230: for water-proof of S type (mm)21BZB104: for water-proof of S type (inch)100691: metric type100797: inch typeMagnetic BackSpecial order900928900929Back with Offset LugSpecial order101167100837Back with Post193172 Custom made101169100839Back with Screw Mount193173: M6x1, Custom made193174: #1/4-28UNF, Custom made136023: M6x1101170: #1/4-28UNF136024: M6x1100840: #1/4-28UNFAdjustable Back136025: M6x1129721: #1/4-20UNC136026: M6x1101168: #1/4-20UNC136027: M6x1100838: #1/4-20UNCBack with Dovetail—900008Special orderBack with Adjustable Bracket—901963—8 ø44 a ø12.7M6 X111.728ø12.722.212.732M6 X15.3(6.4)50.2718.5ø7.1ø10.53825.538161612ø6.5ø2045°45°6.3516 12 ø6.5 ø20 45°45°5 Unit: mmUnit: mmUnit: mmUnit: mmUnit: mmUnit: mmUnit: mm Unit: mm Unit: mm 6.460°309.7AFrom A2.5Interchangeable BacksOptional Accessory for Digimatic and Dial IndicatorsDial IndicatorsComparison measuring instruments which ensure high quality, high accuracy and reliability.ApplicationA dial or Digimatic indicator may be held in position by clamping on either the stem or the lug on the back of the indicator. The back of the indicator may need to be interchanged with another type for special applications. A wide variety of backs are available for Mitutoyo Digimatic and dial indicators.When installing to 297*TB series, please separately prepare 4 xing screws (Order No.546666:Self-tapping screw only for resin).Do not apply a tightening torque of more than 20N-cm in order to avoid stripping the screw threads.


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