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    35 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
     

    Starrett Micrometer Heads

    Mount 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.
    Locknut—Locknuts lock the micrometer’s 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
    Image of Product. Front orientation. Micrometer Heads. Starrett Micrometer Heads, Plain Thimble.
    0 mm to 13 mm±0.002 mm0.01 mmFlat0.138"0.625"Steel2"0.234"0.236"—Starrett460MB8578A160000000
     
    Ratchet-Stop Thimble—Nonrotating Spindle
    Image of Product. Front orientation. Micrometer Heads. Starrett Micrometer Heads, Ratchet-Stop Thimble.
    0" to 1"±0.0001"0.001"Flat0.235"1.25"Steel5 1/2"0.75"0.500"LocknutStarrett262RL8578A12000000
     
    Ratchet-Stop Thimble—Rotating Spindle
    Image of Product. Front orientation. Micrometer Heads. Starrett Micrometer Heads, Ratchet-Stop Thimble.
    0" to 1"±0.0005"0.0001"Flat0.234"1.25"Carbide4 63/64"0.75"0.500"LocknutStarrettT263XRL8578A71000000
    0 mm to 13 mm±0.00125 mm0.002 mmFlat0.203"0.75"Carbide3 25/64"0.5"0.375"LocknutStarrettV463MXRL8578A73000000
     

    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
     

    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 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.
    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 Button350-352-328283A220000000
    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 Button350-351-328283A21000000
     
    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 Button350-354-328283A23000000
     
    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 Button164-16419705A9100000000
     
    Accessories for Micrometer Heads
    Mitutoyo Cords
    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 B2429N20000000
    —USB-A80"Mitutoyo Data Out Switch C2429N3000000
    10-Pin Mitutoyo Connector—40"Mitutoyo Data Out Switch B20395A83000000
    10-Pin Mitutoyo Connector—40"Mitutoyo Data Out Switch C20395A700000
    10-Pin Mitutoyo Connector—80"Mitutoyo Data Out Switch B20395A84000000
    10-Pin Mitutoyo Connector—80"Mitutoyo Data Out Switch C20395A7500000
    SPC 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 B2424N20000000
    1 3/4"Mitutoyo Data Out Switch C2424N3000000
    SPC 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"2412N10000000
    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/D3037604K117000000000000000

    Economy Electronic Micrometer Heads

    Image of Product. Front orientation. Micrometer Heads. Economy Electronic Micrometer Heads.
    Mount these micrometer heads in jigs, fixtures, machine tools, movable tables, and other equipment that requires precise adjustments. The friction thimble will turn with resistance as soon as the spindle touches the object you're measuring, which helps you avoid overtightening. These heads 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.
    The LCD display makes results easy to read. They have zero-position memory, also called absolute positioning (ABS), which keeps the micrometer in the same position after it is turned off. These micrometers have a zero-set button to start measuring at any point along the spindle, like pressing a tare button on a scale.
    Spindle
    Mounting
    Hub
    Distance Measured
    Range
    Accuracy
    Measuring
    Increments
    Tip
    Shape
    Dia.
    Lg.
    Face
    Material
    Overall
    Lg.
    Lg.
    Dia.
    Batteries
    Included
    Features
    Each
    Friction Thimble—Rotating Spindle
    0" to 1"
    0 mm to 25.4 mm    		±0.00012"
    ±0.003 mm    		0.00005"
    0.001 mm    		Flat0.255"1.27"Carbide5 1/4"0.69"0.472"YesZero-Position Memory (ABS), Zero-Set Button5526N11000000
     
    Accessories for Micrometer Heads
    SPC Cords
    Send measurements from your micrometer head to your computer using a cord for measuring tool data processors.
    USB Connection
    Type
    Lg.
    Measuring Tool
    Connection Type
    Each
    USB-A60"Micro USB-AB5526N120000000
    Batteries
    Pkg.
    Pkg.
    Qty.
    1-9
    10-49
    50-Up
    Replacement Battery17701K34000000000000000

    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 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.
    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 Button350-352-328283A460000000
    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 Button350-351-328283A45000000
    Mitutoyo Electronic Micrometer Head with Rotating Flat Tip Spindle and Certificate, Model 350-351-32
    EachIn stock
     
    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 Button350-354-328283A47000000
     
    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 Button164-16419705A1100000000
     
    Accessories for Micrometer Heads
    Mitutoyo Cords
    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 B2429N20000000
    —USB-A80"Mitutoyo Data Out Switch C2429N3000000
    10-Pin Mitutoyo Connector—40"Mitutoyo Data Out Switch B20395A83000000
    10-Pin Mitutoyo Connector—40"Mitutoyo Data Out Switch C20395A700000
    10-Pin Mitutoyo Connector—80"Mitutoyo Data Out Switch B20395A84000000
    10-Pin Mitutoyo Connector—80"Mitutoyo Data Out Switch C20395A7500000
    SPC 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 B2424N20000000
    1 3/4"Mitutoyo Data Out Switch C2424N3000000
    SPC 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"2412N10000000
    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/D3037604K117000000000000000

    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
     
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