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    4 Products

    Digital Outside Micrometers for Small Holes, Grooves, and Keyways

    Image of Product. Front orientation. Outside Micrometers. Digital Outside Micrometers for Small Holes, Grooves, and Keyways.
    Find the outer dimensions of grooves in pins and other small parts, then quickly view your readings. The anvil and spindle are as thin as a pencil point to slip into narrow spaces where standard ones won't fit.
    With an LCD display, these micrometers give instant measurements—no need to read scales. Swap between inch and metric or set the position to zero, all with the press of a button. You don't need to reset the zero point since they retain their position when turned off, also known as absolute (ABS) positioning.
    Mitutoyo—The go-to for machinists and engineers. Every part is made within a Mitutoyo automated factory and tested in-house in Japan. The spindle glides as you turn the thimble with a weighty, silky-smooth feel.
    Calibration Certificate—Choose these micrometers when precision measurements are required for quality control or by regulation. The certificate is traceable to NIST, so you can be confident your measurements are correct and consistent.
    Ratchet-Stop Thimble—Best for consistent, repeatable measurements. The spindle stops extending the moment it reaches your part, so it won’t overtighten. Hear and feel a satisfying click that confirms you’ve applied the right amount of pressure.
    Measuring
    Range
    Accuracy
    Measuring
    Increments
    Outside
    Micrometers
    Outside Micrometers with
    Calibration Certificate
    Inch
    Metric,
    mm
    Inch
    Metric
    Inch
    Metric,
    mm
    Thimble
    Type
    Spindle Point
    Angle
    Throat
    Dp.
    Frame
    Material
    Measuring Functions
    Mfr. Model
    No.
    Each
    Each
    Mitutoyo
     
    Without SPC Data Output
    0" to 1"0 to 25.4±0.0001"±0.0025 mm0.00005"0.001Ratchet Stop30°1.26"Cast IronZero-Position Memory (ABS)342-361-3019585A63000000019585A650000000
     
    Replacements for Outside Micrometers
    Replacement Cases
    Image of Product. Front orientation. Mitutoyo.
    For Mfr. Model No.
    Each
    Mitutoyo
    293-331-30, 293-341-30, 293-345-30, 342-351-30, 342-361-304274N14000000
     
    Replacement Batteries
    Each
    1-9
    10-49
    50-Up
    Replacement SR44 Silver Oxide Battery7604K117000000000000000
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