McMaster-Carr logo
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    28 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 require 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, LocknutsMitutoyo148-50200000000000000
    0" to 0.5"±0.0001"0.001"Round0.197"0.61"Steel2 13/16"0.375"0.375"Clamp Nut, LocknutsMitutoyo148-8520000000000000
    0 mm to 13 mm±0.002 mm0.01 mmFlat0.197"0.61"Steel2 13/16"0.375"0.375"Clamp Nut, LocknutsMitutoyo148-5040000000000000
     
    Plain Thimble—Nonrotating Spindle
    0" to 1"±0.00015"0.001"Flat0.315"1.063"Carbide4 1/4"0.394"0.500"—Mitutoyo153-20700000000000000
    0" to 2"±0.0002"0.0002"Flat0.315"2.559"Carbide5 5/8"0.551"0.709"—Mitutoyo197-20100000000000000
     
    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, LocknutsMitutoyo150-2140000000000000
     

    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 NutMitutoyo148-143-1000000000000000
    0 to 6.5±0.002 mm0.010.25Round0.250"0.35"Steel1 29/32"0.375"0.375"Clamp NutMitutoyo148-323-10000000000000
    0 to 13±0.002 mm0.010.25Round0.197"0.69"Steel2 13/16"0.375"0.375"Clamp NutMitutoyo148-133-10000000000000
     

    Mitutoyo Electronic Micrometer Heads

    Image of Product. 350 Models. Front orientation. Micrometer Heads. Mitutoyo Electronic Micrometer Heads, Ratchet-Stop Thimble.
    Image of Product. 164 Model. Front orientation. Micrometer Heads. Mitutoyo Electronic Micrometer Heads, Plain Thimble.

    350 Models

    164 Model

    For easier reading than other micrometer heads, these show measurements on an LCD. Mount them in jigs, fixtures, machine tools, movable tables, and other equipment that require 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.
    Zero-position memory, also known as absolute (ABS) positioning, retains the measuring position when the micrometer is turned off. A zero-set button lets you start measuring at any point. SPC data output allows for connection to a computer or data processor.
    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.
    Flat Spindle Tip—Flat spindle tips are often used in measurement applications and for bearing against round surfaces.
    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.
    Distance Measured
    Range
    Accuracy
    Measuring
    Increments
    Spindle
    Lg.
    Overall
    Lg.
    Batteries
    Included
    Electrical Connection
    Features
    Mfr. Model
    No.
    Each
    Ratchet-Stop Thimble—Rotating Spindle with Flat Spindle Tip
    0" to 1"
    0 mm to 25.4 mm    		±0.0001"
    ±0.0025 mm    		0.00005"
    0.001 mm    		1.06"6 5/32"YesMitutoyo Data Out Switch BClamp Nut, Zero-Position Memory (ABS), Zero-Set Button350-352-3000000000000000
    0" to 1"
    0 mm to 25.4 mm    		±0.0001"
    ±0.0025 mm    		0.00005"
    0.001 mm    		1.06"6 5/32"YesMitutoyo Data Out Switch BZero-Position Memory (ABS), Zero-Set Button350-351-300000000000000
     
    Ratchet-Stop Thimble—Rotating Spindle with Round Spindle Tip
    0" to 1"
    0 mm to 25.4 mm    		±0.0001"
    ±0.0025 mm    		0.00005"
    0.001 mm    		1.06"6 5/32"YesMitutoyo Data Out Switch BClamp Nut, Zero-Position Memory (ABS), Zero-Set Button350-354-320000000000000
     
    Plain Thimble—Nonrotating Spindle with Flat Spindle Tip
    0" to 2"
    0 mm to 50.8 mm    		±0.00015"
    ±0.003 mm    		0.00005"
    0.001 mm    		2"6 11/16"YesMitutoyo Data Out Switch CRotating Display, Zero-Position Memory (ABS), Zero-Set Button164-16400000000000000
     
    Accessories for Micrometer Heads
    Cords for Measuring Tool Data Processors
    10-Pin Mitutoyo Connector—10-pin data cables connect the micrometer to a Mitutoyo miniprocessor or multiplexer.
    USB-A Connection—USB-A data cable connects the micrometer head directly to your PC.
    Data Processor Connection
    Type
    USB Connection
    Type
    Lg.
    Measuring Tool Connection
    Type
    Each
    —USB-A80"Mitutoyo Data Out Switch B0000000000000
    —USB-A80"Mitutoyo Data Out Switch C000000000000
    10-Pin Mitutoyo Connector—40"Mitutoyo Data Out Switch B00000000000000
    10-Pin Mitutoyo Connector—40"Mitutoyo Data Out Switch C000000000000
    10-Pin Mitutoyo Connector—80"Mitutoyo Data Out Switch B00000000000000
    10-Pin Mitutoyo Connector—80"Mitutoyo Data Out Switch C0000000000000
    SPC Wireless Transmitters
    SPC wireless transmitters allow you to transmit measurement data from the micrometer to your PC without being tethered by a cable.
    Lg.
    Electrical Connection
    Each
    1 3/4"Mitutoyo Data Out Switch B0000000000000
    1 3/4"Mitutoyo Data Out Switch C000000000000
    SPC Wireless Receivers
    SPC wireless receivers allow you to transmit measurement data from the micrometer to your PC without being tethered by a cable.
    Lg.
    Each
    5 1/2"0000000000000
    Replacement Batteries
    Each
    Mfr. Equiv. No.
    1-9
    10-49
    50-Up
    303, 357, D357, EPX76, RW22/42, SP303, SP357, SR44, SR44SW, SR44W, V76PX, V303, V357, WS14/D30300000000000000000000000

    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"HandleMitutoyo785000000000000000
     

    Mitutoyo Electronic Micrometer Heads with Calibration Certificate

    Image of Product. 350 Models. Front orientation. Micrometer Heads. Mitutoyo Electronic Micrometer Heads with Calibration Certificate, Ratchet-Stop Thimble.
    Image of Product. 164 Model. Front orientation. Micrometer Heads. Mitutoyo Electronic Micrometer Heads with Calibration Certificate, Plain Thimble.

    350 Models

    164 Model

    These micrometer heads come with a calibration certificate traceable to NIST that states they've passed a test for accuracy. For easier reading than other micrometer heads, these show measurements on an LCD. Mount them in jigs, fixtures, machine tools, movable tables, and other equipment that require 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.
    Zero-position memory, also known as absolute (ABS) positioning, retains the measuring position when the micrometer is turned off. A zero-set button lets you start measuring at any point. SPC data output allows for connection to a computer or data processor.
    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.
    Flat Spindle Tip—Flat spindle tips are often used in measurement applications and for bearing against round surfaces.
    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.
    Distance Measured
    Range
    Accuracy
    Measuring
    Increments
    Spindle
    Lg.
    Overall
    Lg.
    Batteries
    Included
    Electrical Connection
    Features
    Mfr. Model
    No.
    Each
    Ratchet-Stop Thimble—Rotating Spindle with Flat Spindle Tip
    0" to 1"
    0 mm to 25.4 mm    		±0.0001"
    ±0.0025 mm    		0.00005"
    0.001 mm    		1.06"6 5/32"YesMitutoyo Data Out Switch BClamp Nut, Zero-Position Memory (ABS), Zero-Set Button350-352-3000000000000000
    0" to 1"
    0 mm to 25.4 mm    		±0.0001"
    ±0.0025 mm    		0.00005"
    0.001 mm    		1.06"6 5/32"YesMitutoyo Data Out Switch BZero-Position Memory (ABS), Zero-Set Button350-351-300000000000000
     
    Ratchet-Stop Thimble—Rotating Spindle with Round Spindle Tip
    0" to 1"
    0 mm to 25.4 mm    		±0.0001"
    ±0.0025 mm    		0.00005"
    0.001 mm    		1.06"6 5/32"YesMitutoyo Data Out Switch BClamp Nut, Zero-Position Memory (ABS), Zero-Set Button350-354-320000000000000
     
    Plain Thimble—Nonrotating Spindle with Flat Spindle Tip
    0" to 2"
    0 mm to 50.8 mm    		±0.00015"
    ±0.003 mm    		0.00005"
    0.001 mm    		2"6 11/16"YesMitutoyo Data Out Switch CRotating Display, Zero-Position Memory (ABS), Zero-Set Button164-16400000000000000
     
    Accessories for Micrometer Heads
    Cords for Measuring Tool Data Processors
    10-Pin Mitutoyo Connector—10-pin data cables connect the micrometer to a Mitutoyo miniprocessor or multiplexer.
    USB-A Connection—USB-A data cable connects the micrometer head directly to your PC.
    Data Processor Connection
    Type
    USB Connection
    Type
    Lg.
    Measuring Tool Connection
    Type
    Each
    —USB-A80"Mitutoyo Data Out Switch B0000000000000
    —USB-A80"Mitutoyo Data Out Switch C000000000000
    10-Pin Mitutoyo Connector—40"Mitutoyo Data Out Switch B00000000000000
    10-Pin Mitutoyo Connector—40"Mitutoyo Data Out Switch C000000000000
    10-Pin Mitutoyo Connector—80"Mitutoyo Data Out Switch B00000000000000
    10-Pin Mitutoyo Connector—80"Mitutoyo Data Out Switch C0000000000000
    SPC Wireless Transmitters
    SPC wireless transmitters allow you to transmit measurement data from the micrometer to your PC without being tethered by a cable.
    Lg.
    Electrical Connection
    Each
    1 3/4"Mitutoyo Data Out Switch B0000000000000
    1 3/4"Mitutoyo Data Out Switch C000000000000
    SPC Wireless Receivers
    SPC wireless receivers allow you to transmit measurement data from the micrometer to your PC without being tethered by a cable.
    Lg.
    Each
    5 1/2"0000000000000
    Replacement Batteries
    Each
    Mfr. Equiv. No.
    1-9
    10-49
    50-Up
    303, 357, D357, EPX76, RW22/42, SP303, SP357, SR44, SR44SW, SR44W, V76PX, V303, V357, WS14/D30300000000000000000000000
    back to top