701B Internal Groove Micrometer 52915

Measures grooves for retaining rings and O rings, oil grooves, washer grooves, as well as bores and recesses. Depth of grooves up to 5/64" can be measured with 701A; and 7/32" with 701B. 1.500-2.500" Range, .001" Grad, Friction Thimble, Lock Screw.

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  • Contacts have flush ends
  • Satin chrome reading surface is glare free and resists rust
  • Hardened and ground gaging contacts
  • Smooth friction thimble
  • Lock screw
  • Gaging contacts are .030" thick


  • Micrometer Type: Internal Groove Micrometer
  • Range (in): 1.500 - 2.500"
  • Graduations (in): .001"
  • Accuracy (in): +/-.0002"


    Member of Kit
    Item #DescriptionPart No.QtyInformation
    20SPINDLE, OUTER JAW19452-01
    30SPINDLE, INSIDE MIC19450-01
    40SHELL, ADJUSTING16991-01
    50SHELL, FRICTION SA26199-01
    60SCREW, .157-40 SET X .094 LONGPT063881
    70KEY, LOCATING #70006566-01
    80NUT, .375-52PT164141
    90NUT, #4-4819160-02
    100SPRING, BARREL10058-01
    110CAP, END06567-01
    120SCREW, .100-56 LOCK X .250 LONGPT092611
    130CAP, SHELL FRICTION05048-01
    140SCREW, .157-40 SLOT X .377 LONGPT051361
    150WRENCH #3PT015262


    2D Dimensional Drawing (PDF)



    75.02 kb



    Catalog 33 - Section 1 - Micrometers
    The L.S. Starrett Company

    In the hands of a skilled operator, the precision micrometer is the most accurate hand-held tool available. When close measurements are necessary, the micrometer is the ideal tool for the job because measurement and reading are on the same axis and the anvil end is supported by a strong frame.

    [69 pages]

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    California Proposition 65 Warning

      WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information go to: www.P65Warnings.ca.gov