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    15 Products

    Mitutoyo Micrometer Heads

    Image of Product. Side1 orientation. Micrometer Heads. Mitutoyo Micrometer Heads, Ratchet-Stop Thimble.
    Image of Product. Front orientation. Micrometer Heads. Mitutoyo Micrometer Heads, Plain Thimble.

    Ratchet-Stop Thimble

    Plain Thimble

    Use these micrometer heads in jigs, fixtures, machine tools, movable tables, and other equipment that requires precise adjustments. They are held in place by the cylindrical mounting hub using your existing brackets or fixtures. Spindle length is the maximum extended distance when the micrometer head is set at zero.
    Ratchet-Stop Thimble—Ratchet-stop thimbles have a constant-force mechanism to ensure repeatable measurements without relying on operator feel. They also have a speeder knob to reduce the time it takes to move the spindle. Once the spindle contacts the surface of the measured object, it will stop tightening, but the speeder knob will continue turning with a clicking sound.
    Plain Thimble—Plain thimbles turn freely without friction or a stopping device and rely on operator feel for accurate measurements.
    Nonrotating Spindle—Nonrotating spindles prevent scratches on delicate work surfaces and eliminate distortion of soft or elastic material.
    Round Spindle Tip—Round spindle tips minimize errors from misalignment, so they’re often used as feed devices.
    Clamp Nut—Clamp nuts securely hold the micrometer head and provide extra support.
    Locknuts—Locknuts lock the spindle in place.
    Spindle
    Mounting
    Hub
    Distance Measured
    Range
    Accuracy
    Measuring
    Increments
    Tip
    Shape
    Dia.
    Lg.
    Face
    Material
    Overall
    Lg.
    Lg.
    Dia.
    Features
    Mfr.
    Mfr. Model
    No.
    Each
    Plain Thimble—Rotating Spindle
    0" to 0.5"±0.0001"0.001"Flat0.197"0.61"Steel2 13/16"0.375"0.375"Clamp Nut, LocknutsMitutoyo148-50219725A62000000
    0" to 0.5"±0.0001"0.001"Round0.197"0.61"Steel2 13/16"0.375"0.375"Clamp Nut, LocknutsMitutoyo148-85219725A1100000
    0 mm to 13 mm±0.002 mm0.01 mmFlat0.197"0.61"Steel2 13/16"0.375"0.375"Clamp Nut, LocknutsMitutoyo148-50419725A1200000
     
    Plain Thimble—Nonrotating Spindle
    0" to 1"±0.00015"0.001"Flat0.315"1.063"Carbide4 1/4"0.394"0.500"—Mitutoyo153-20719725A14000000
    0" to 2"±0.0002"0.0002"Flat0.315"2.559"Carbide5 5/8"0.551"0.709"—Mitutoyo197-20119725A15000000
     
    Ratchet-Stop Thimble—Rotating Spindle
    0" to 1"±0.0001"0.001"Flat0.250"1.063"Carbide4 3/4"0.591"0.375"Clamp Nut, LocknutsMitutoyo150-21419725A1300000
     

    Precision-Adjust Micrometer Heads

    Image of Product. Front orientation. Micrometer Heads. Precision-Adjust Micrometer Heads.
    For near perfect positioning, the spindle on these micrometer heads moves in smaller increments than the spindle on any other micrometer head we offer. Mount them in equipment requiring extremely precise adjustments, such as positioning tables used in semiconductor manufacturing or in optical component alignment. They are held in place by the cylindrical mounting hub using your existing brackets or fixtures. For a tight hold and extra support, secure the clamp nut against the bracket or fixture on the mounting hub.
    Spindle length is the maximum extended distance when the micrometer head is set at zero.
    Plain Thimble—Plain thimbles turn freely without friction or a stopping device and rely on operator feel for accurate measurements.
    Round Spindle Tip—Round spindle tips minimize errors from misalignment, so they’re often used as feed devices.
    Spindle
    Mounting
    Hub
    Distance Measured
    Range, mm
    Accuracy
    Measuring Increments,
    mm
    Travel Distance
    per Turn, mm
    Tip
    Shape
    Dia.
    Lg.
    Face
    Material
    Overall
    Lg.
    Lg.
    Dia.
    Features
    Mfr.
    Mfr. Model
    No.
    Each
    Plain Thimble—Rotating Spindle
    0 to 6.5±0.002 mm0.0020.1Round0.197"0.55"Steel2 27/64"0.375"0.375"Clamp NutMitutoyo148-143-106256N130000000
    0 to 6.5±0.002 mm0.010.25Round0.250"0.35"Steel1 29/32"0.375"0.375"Clamp NutMitutoyo148-323-106256N1200000
    0 to 13±0.002 mm0.010.25Round0.197"0.69"Steel2 13/16"0.375"0.375"Clamp NutMitutoyo148-133-106256N11000000
     

    Outside Micrometers for Tolerance Checking

    Image of Product. Front orientation. Outside Micrometers. Outside Micrometers for Tolerance Checking, Dial Display.

    Dial Display

    Confirm parts are within tolerance without twisting the thimble each time. These micrometers don't need batteries, so they're always ready for the job.
    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.
    Dial Display—Know exactly how far your part falls outside of the tolerance range. Push a button to retract the anvil, then slide your part in. Release and the anvil snaps back to its set position. The needle on the dial shows you the difference in measurement.
    Outside
    Micrometers
    Measuring
    Range
    Accuracy
    Measuring
    Increments
    Thimble
    Type
    Throat
    Dp.
    Frame
    Material
    Mfr. Model
    No.
    Each
    Mitutoyo
     
    With Dial Display
    0" to 1"±0.00005"0.00005"Plain0.984"Steel523-1316306N110000000
    1" to 2"±0.00005"0.00005"Plain1.378"Steel523-1326306N1200000000
     

    Leveling Micrometer Heads

    Image of ProductInUse. Front orientation. Contains Border, MultipleImages. Micrometer Heads. Leveling Micrometer Heads.
    Image of Product. Front orientation. Micrometer Heads. Leveling Micrometer Heads.
    Precisely level heavy machines, surface plates, and other devices when accuracy is crucial. Turn the handle to adjust their height, even when under a machine.
    Plain Thimble—Plain thimbles turn freely without friction or a stopping device and rely on operator feel for accurate measurements.
    Overall
    Distance Measured
    Range, mm
    Measuring Increments,
    mm
    Point
    Angle
    Spindle Face
    Material
    Wt. Cap.,
    lb.
    Wd.
    Ht.
    Base
    Dia.
    Handle
    Lg.
    Features
    Mfr.
    Mfr. Model
    No.
    Each
    Plain Thimble—Rotating Spindle
    60 to 750.0190°Steel8504 19/32"2 3/8"2 17/32"3 11/32"HandleMitutoyo78508614N110000000
     

    Mitutoyo Dial Depth Gauges

    Image of Product. Front orientation. Depth Gauges. Mitutoyo Dial Depth Gauges.
    Check depth measurements at a glance. These gauges have a dial that displays how far their blade extends into slots, holes, and grooves. Designed for frequent use, they’re often found in machine shops and other areas where digital measurements and data transfer aren’t required.
    Measuring
    Blade
    Base
    Distance
    Measured
    Accuracy
    Measuring
    Increments
    Tip
    Wd.
    Wd.
    Material
    Wd.
    Lg.
    Material
    Overall
    Ht.
    Measurement
    per Dial Rev.
    Dial Face
    Color
    Mfr.
    Mfr. Model
    No.
    Each
    0" to 12"±0.0015"0.001"0.16"0.43"Stainless Steel
    		4"11/16"Stainless Steel
    		16 1/8"0.2"WhiteMitutoyo527-313-502105A420000000
     
    Base Extensions
    7" Base Extension—Base extensions increase the base width of your depth gauge to measure large-diameter holes.
    12" Base Extension—Base extensions increase the base width of your depth gauge to measure large-diameter holes.
    Each
    7" Base Extension2105A66000000
    12" Base Extension2105A6800000
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