McMaster-Carr logo
    Filter by
    Display Type
    System of Measurement
    Mount Type
    Dial Indicator Type
    Industrial Info Compare
    Power Source
    Mounting Stem Diameter
    Contact Point Diameter
    Manufacturer
    Dial Hand Direction
    Contact Point Mounting Thread Size
    Industrial Info Compare
    SPC Data Output
    Contact Point Material
    Base Mount Type
    Manufacturer Model Number
    Dial Face Color
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    DFARS Specialty Metals
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    41 Products

    Coolant-Resistant Economy Electronic Plunger Variance Indicators

    Image of Product. Front orientation. Variance Indicators. Coolant-Resistant Economy Electronic Plunger Variance Indicators.
    Image of Product. Side View. Side1 orientation. Variance Indicators. Coolant-Resistant Economy Electronic Plunger Variance Indicators.

    Side View

    Protected from dirty machining environments, these indicators are IP67 rated to seal out dust, coolant, and water from temporary submersion. To measure objects, they have a spring-loaded plunger that retracts and extends. Measurements are simple to read on the digital screen.
    Use the go/no-go function to quickly identify items that fall outside your set tolerance. A zero-set button lets you start measuring at any point. Zero-position memory, also known as absolute (ABS) position, retains the measuring position when the indicator is off.
    All have SPC data output, so you can connect them to your computer or data processor with a USB cord (sold separately).
    Bluetooth Connection—Some indicators have a Bluetooth connection to send data to other Bluetooth-enabled devices wirelessly.
    Distance
    Measured
    Measuring
    Increments
    Accuracy
    Contact Point
    Inch
    Metric,
    mm
    Inch
    Metric,
    mm
    Inch
    Metric
    Dial Indicator
    Size
    Mounting
    Stem Dia.
    Mounting Lug
    Hole Dia.
    Dial
    Dia.
    Dia.
    Lg.
    Mounting
    Thread Size
    Batteries
    Included
    Each
    Lug Mount, Stem Mount—IP67
     
    With SPC Data Output
    0" to 0.5"0 to 12.70.00005"0.001±0.0003"±0.007 mmAGD Group 2
    3/8"1/4"2 3/16"0.197"0.314"4-48
    Yes6226N13000000
    0" to 1"0 to 250.00005"0.001±0.00035"±0.008 mmAGD Group 2
    3/8"1/4"2 3/16"0.197"0.314"4-48
    Yes6226N14000000
    0" to 2"0 to 500.00005"0.001±0.0004"±0.01 mmAGD Group 2
    3/8"1/4"2 3/16"0.197"0.314"4-48
    Yes6226N15000000
    0" to 4"0 to 1010.00005"0.001±0.0004"±0.01 mmAGD Group 2
    3/8"1/4"2 3/16"0.197"0.314"4-48
    Yes6226N16000000
     
    With SPC Data Output and Bluetooth Connection
    0" to 0.5"0 to 12.70.00005"0.001±0.0003"±0.007 mmAGD Group 2
    3/8"1/4"2 3/16"0.197"0.314"4-48
    Yes6226N17000000
    0" to 1"0 to 250.00005"0.001±0.00035"±0.008 mmAGD Group 2
    3/8"1/4"2 3/16"0.197"0.314"4-48
    Yes6226N18000000
    0" to 2"0 to 500.00005"0.001±0.0004"±0.01 mmAGD Group 2
    3/8"1/4"2 3/16"0.197"0.314"4-48
    Yes6226N19000000
    0" to 4"0 to 1010.00005"0.001±0.0004"±0.01 mmAGD Group 2
    3/8"1/4"2 3/16"0.197"0.314"4-48
    Yes6226N21000000
     
    Accessories for Variance Indicators

    Remote-Reading Compact Electronic Plunger Variance Indicators

    Image of Product. Front orientation. Variance Indicators. Compact Electronic Plunger Variance Indicators with Remote Readout.
    Image of Product. Side View. Side2 orientation. Variance Indicators. Compact Electronic Plunger Variance Indicators with Remote Readout.

    Side

    View

    Read measurements from up to 4 ft. away. Instead of a dial on the probe, these indicators have a cord that connects the probe to the display. This also makes it easy to fit the probe into tight spaces. To measure objects, they have a spring-loaded plunger that retracts and extends. Use them in machine shops where it’s dusty, wet, or exposed to coolant because they’re IP rated.
    All have zero-position memory, which retains the measuring position when the indicator is off. This is also known as absolute (ABS) positioning. A zero-set button lets you start measuring at any point. The go/no-go operation indicates when measurements fall outside your set tolerance. You can connect them to your computer or data processor since they have SPC data output.
    Distance
    Measured
    Measuring
    Increments
    Accuracy
    Contact Point
    Body
    Inch
    Metric,
    mm
    Inch
    Metric,
    mm
    Inch
    Metric
    Mounting
    Stem Dia.
    Mounting Lug
    Hole Dia.
    Dia.
    Lg.
    Mounting
    Thread Size
    Lg.
    Wd.
    Dp.
    Cable
    Lg.
    Batteries
    Included
    SPC Data
    Output
    Each
    Lug Mount, Stem Mount—IP65
    0" to 0.5"0 to 12.70.00005"0.001±0.00016"±0.005 mm3/8"1/4"0.177"0.315"4-48
    3 7/8"1 1/2"1 1/8"48"YesYes6257N130000000
    0" to 1"0 to 25.40.00005"0.001±0.00016"±0.005 mm3/8"1/4"0.177"0.315"4-48
    4 7/8"1 1/2"1 1/8"48"YesYes6257N14000000
    0" to 2"0 to 50.80.00005"0.001±0.0002"±0.006 mm3/8"1/4"0.177"0.315"4-48
    6 7/8"1 1/2"1 1/8"48"YesYes6257N15000000
    0" to 4"0 to 101.60.00005"0.002±0.0003"±0.01 mm3/8"1/4"0.177"0.315"4-48
    10 7/8"1 1/2"1 1/8"48"YesYes6257N16000000
     
    Accessories for Variance Indicators

    Coolant-Resistant Economy Continuous Dial Plunger Variance Indicators

    Image of Product. Front orientation. Variance Indicators. Coolant-Resistant Economy Continuous Dial Plunger Variance Indicators.
    Image of Product. Side View. Side2 orientation. Variance Indicators. Coolant-Resistant Economy Continuous Dial Plunger Variance Indicators.

    Side

    View

    Often used in machine shops, these indicators are rated IP65 for protection from dust, spraying water, and coolant. They have a continuous dial numbered clockwise around the face, so it’s easy to see how much a dimension increases. A spring-loaded plunger retracts and extends to measure objects. Adjust the tolerance pointers to mark measurements that fall outside your limits.
    Dial
    Contact Point
    Distance
    Measured
    Measuring
    Increments
    Accuracy
    Dial Indicator
    Size
    Mounting
    Stem Dia.
    Mounting Lug
    Hole Dia.
    Dia.
    Reading
    Inch
    Dia.
    Lg.
    Mounting
    Thread Size
    Includes
    Each
    Lug Mount, Stem Mount—IP65
     
    Plain Bearing
    0" to 1.000"0.001"±0.001"AGD Group 1
    3/8"1/4"2"0-100
    0.197"1/4"4-48
    Tolerance Pointers5524N11000000
     
    Variance Indicator Backs

    Machine Tool Indicators

    Find the exact edge of a workpiece without math or guesswork to quickly align your machining setup. Unlike most edge finders, these indicators don't require you to monitor the contact point's position and then add or subtract its diameter. When the display shows zero, that's your edge. These indicators move along three axes, so you can also use them to measure part dimensions, check surface flatness, and locate the centers of holes. The display swivels, eliminating the need to lean into your machine or set up mirrors to measure the back of your part.
    Insert these indicators into your CNC or manual milling machine, adjust the set screws at the top to calibrate them, and they're ready to go. To stop the indicator from breaking, the contact point has a ceramic body that fractures if it collides with your part. Just screw on a new contact point to replace it without having to re-calibrate.
    Dial Display
    Image of Product. Front orientation. Machine Tool Indicators. Dial Display.
    Measuring
    Dial
    Mounting
    Shank
    Contact Point
    Distance
    Increments
    Accuracy
    Dia.
    Reading
    Dia.
    Lg.
    Dia.
    Lg.
    Mounting Thread
    Size
    Material
    Overall
    Lg.
    Enclosure
    Rating
    Each
    0" to 0.15"0.0005"±0.0005"2.6"0-50
    3/4"2"0.2"1"M3 × 0.5 mmStainless Steel
    6.37"IP67
    2350N110000000
    0" to 0.15"0.001"±0.001"1.92"0-50
    0.39"1"0.2"1"M3 × 0.5 mmStainless Steel
    4.756"IP67
    2350N13000000
    Machine Tool Indicator Contact Points
    LCD Digital Display
    Image of Product. Front orientation. Machine Tool Indicators. Digital Display.
    These indicators have zero-position memory, also called absolute (ABS) positioning, which saves their position even when turned off. Press the button to set them to zero and start measuring at any point. The large numbers on the display are easy to read from far away, such as when mounted at the center of a large CNC machine.
    Machine Tool Indicators
    Replacement
    Batteries
    Measuring
    Mounting
    Shank
    Contact Point
    Distance
    Increments
    Accuracy
    Dial
    Dia.
    Dia.
    Lg.
    Dia.
    Lg.
    Mounting Thread
    Size
    Material
    Overall
    Lg.
    Batteries
    Included
    Enclosure
    Rating
    Each
    Pkg.
    Qty.
    Pkg.
    0" to 0.15"0.00005"±0.0002"2.6"3/4"2"0.2"1"M3 × 0.5 mmStainless Steel
    6.37"YesIP64
    2350N1200000000017701K3400000
    Machine Tool Indicator Contact Points

    Electronic Lever Variance Indicators

    Image of Product. Front orientation. Variance Indicators. Electronic Lever Variance Indicators.
    Image of Product. Side View. Side1 orientation. Variance Indicators. Electronic Lever Variance Indicators.

    Side View

    Also known as test indicators, these have a lever-style contact point that pivots as it comes into contact with a surface. Rotate the dial face for viewing at multiple angles. They have selectable measurement increments and can be displayed as digits or in a bar graph. Transmit measurement data to any Bluetooth-enabled device without being tethered by a cable. These indicators are rated IP65 for protection against dust and spraying water or coolant.
    Distance
    Measured
    Display
    Reading
    Measuring
    Increments
    Accuracy
    Contact Point
    Inch
    Metric,
    mm
    Inch
    Metric
    Inch
    Metric, mm
    Inch
    Metric
    No. of Dovetail
    Mounts
    Dial
    Dia.
    Dia.
    Lg.
    Mounting
    Thread Size
    Swivel
    Angle
    Batteries
    Included
    SPC Data
    Output
    Each
    Dovetail Mount—IP65
    0" to 0.03"0 to 0.80-40-00-1-00.00005", 0.0005"0.001
    0.01
    ±0.0004"±0.01 mm11 1/2"0.08"1/2"M1.4
    270°YesYes2112A110000000
    0" to 0.08"0 to 20-40-00-1-00.00005", 0.0005"0.001
    0.01
    ±0.0004"±0.01 mm11 1/2"0.08"1 7/16"M1.4
    270°YesYes2112A13000000
     
    Batteries

    Water-Resistant Mitutoyo Electronic Plunger Variance Indicators with Calibration Certificate

    Image of Product. Front orientation. Variance Indicators. Water-Resistant Mitutoyo Electronic Plunger Variance Indicators with Calibration Certificate.
    Image of Product. Side View. Side2 orientation. Variance Indicators. Water-Resistant Mitutoyo Electronic Plunger Variance Indicators with Calibration Certificate.

    Side View

    These indicators come with a calibration certificate traceable to NIST that states they’ve passed a test for accuracy. All are IP53 rated for limited protection from dust and spraying water. A spring-loaded plunger retracts and extends to measure objects. They have zero-position memory, also known as absolute (ABS) positioning, which retains the measuring position when the indicator is off. A zero-set button lets you start measuring at any point. SPC data output allows for connection to a computer or data processor.
    Distance
    Measured
    Measuring
    Increments
    Accuracy
    Contact Point
    Inch
    Metric,
    mm
    Inch
    Metric,
    mm
    Inch
    Metric
    Dial Indicator
    Size
    Mounting
    Stem Dia.
    Mounting Lug
    Hole Dia.
    Dial
    Dia.
    Dia.
    Lg.
    Mounting
    Thread Size
    Batteries
    Included
    Electrical Connection
    SPC Data
    Output
    Mfr. Model
    No.
    Each
    Lug Mount, Stem Mount—IP53
    0" to 0.5"0 to 12.70.00005"0.001±0.0001"±0.0025 mmAGD Group 2
    3/8"1/4"2 3/8"0.197"0.835"4-48
    YesStraight Mitutoyo ConnectorYes543-796-122360A60000000
     
    Accessories for Variance Indicators

    Water-Resistant Mitutoyo Electronic Plunger Variance Indicators

    Image of Product. Front orientation. Variance Indicators. Water-Resistant Mitutoyo Electronic Plunger Variance Indicators.
    Image of Product. Side View. Side2 orientation. Variance Indicators. Water-Resistant Mitutoyo Electronic Plunger Variance Indicators.

    Side View

    For use in wet environments, these indicators are IP53 rated for limited protection from dust and spraying water. A spring-loaded plunger retracts and extends to measure objects. They have zero-position memory, also known as absolute (ABS) positioning, which retains the measuring position when the indicator is off. A zero-set button lets you start measuring at any point. SPC data output allows for connection to a computer or data processor.
    Distance
    Measured
    Measuring
    Increments
    Accuracy
    Contact Point
    Inch
    Metric,
    mm
    Inch
    Metric,
    mm
    Inch
    Metric
    Dial Indicator
    Size
    Mounting
    Stem Dia.
    Mounting Lug
    Hole Dia.
    Dial
    Dia.
    Dia.
    Lg.
    Mounting
    Thread Size
    Batteries
    Included
    Electrical Connection
    SPC Data
    Output
    Mfr. Model
    No.
    Each
    Lug Mount, Stem Mount—IP53
    0" to 0.5"0 to 12.70.00005"0.001±0.0001"±0.0025 mmAGD Group 2
    3/8"1/4"2 3/8"0.197"0.835"4-48
    YesStraight Mitutoyo ConnectorYes543-796-122360A50000000
     
    Accessories for Variance Indicators

    Economy Electronic Plunger Variance Indicators with Rigid-Arm Magnetic-Base Holder

    Image of Product. Front orientation. Variance Indicators. Economy Electronic Plunger Variance Indicators with Rigid-Arm Magnetic-Base Holder.
    Image of Product. Side View. Side1 orientation. Variance Indicators. Economy Electronic Plunger Variance Indicators with Rigid-Arm Magnetic-Base Holder.

    Side View

    Stick the magnetic base onto metal surfaces for a secure hold while measuring. They have a V-grooved bottom that stays secure on flat and curved surfaces. To precisely position the indicator, adjust the knobs on the arm and clamp.
    The indicator has a spring-loaded plunger that retracts and extends to measure objects. All have zero-position memory, also known as absolute (ABS) positioning, which retains the measuring position when the indicator is off. A zero-set button lets you start measuring at any point.
    All can send data to your computer using a USB cord (sold separately). To send data wirelessly, choose an indicator with either SPC data output or Bluetooth.
    IP67 Enclosure Rating—IP67-rated indicators seal out coolant, water, and dust, so you can take measurements in dirty machining environments.
    With SPC Data Output—Indicators with SPC data output transfer your measurement data to your device with the push of a button.
    Bluetooth Connection—Indicators with Bluetooth send measurement data to your device wire-free and without an additional device.
    Tolerance-Checking Go/No-Go Operation—Indicators with tolerance-checking go/no-go operation inform you when an item falls outside your set measurements.
    Distance
    Measured
    Measuring
    Increments
    Accuracy
    Contact Point
    Inch
    Metric,
    mm
    Inch
    Metric,
    mm
    Inch
    Metric
    Counting
    Direction
    Dial Indicator
    Size
    Dial
    Dia.
    Dia.
    Lg.
    Mounting
    Thread Size
    Base Magnetic
    Pull, lbf
    Batteries
    Included
    Features
    Each
    Lug Mount, Stem Mount—IP67
     
    With SPC Data Output, Bluetooth Connection, and Charging Cord
    0" to 1"0 to 250.00005"0.001±0.00035"±0.008 mmForward, BackwardAGD Group 2
    2 3/16"0.197"0.315"4-48
    80YesFine-Adjustment Arm, Fine-Adjustment Clamp, Tolerance-Checking Go/No-Go Operation, Zero-Position Memory (ABS), Zero-Set Button2362N1020000000
     
    Accessories for Variance Indicators

    Economy Electronic Plunger Variance Indicators with Jointed-Arm Magnetic-Base Holder

    Image of Product. Front orientation. Variance Indicators. Economy Electronic Plunger Variance Indicators with Jointed-Arm Magnetic-Base Holder.
    Image of Product. Side View. Side1 orientation. Variance Indicators. Economy Electronic Plunger Variance Indicators with Jointed-Arm Magnetic-Base Holder.

    Side View

    Adjust joints at the top, middle, and bottom of the base to position the indicator in place. Use the knob on the fine-adjustment clamp to precisely angle the indicator. The base is magnetic and has a V-groove on the bottom for a solid mount on flat and curved metal surfaces. Flip a switch to release the magnet.
    A spring-loaded plunger extends and retracts from the indicator to take measurements. The measurements display on an easy-to-read LCD display. Start measuring at any point by pressing the zero-set button. They have zero-position memory, also known as absolute (ABS) positioning, which retains the measuring position when the indicator is off.
    All can send data to your computer using a USB cord (sold separately).
    IP67 Enclosure Rating—IP67-rated indicators seal out coolant, water, and dust, so you can take measurements in dirty machining environments.
    Bluetooth Connection—Indicators with Bluetooth connection can transfer your measurement data wirelessly to your device with the push of a button. You'll need a data transmitter/receiver set (sold separately).
    Tolerance-Checking Go/No-Go Operation—Indicators with tolerance-checking go/no-go operation inform you when an item falls outside your set measurements.
    Distance
    Measured
    Measuring
    Increments
    Accuracy
    Contact Point
    Inch
    Metric,
    mm
    Inch
    Metric,
    mm
    Inch
    Metric
    Counting
    Direction
    Dial Indicator
    Size
    Dial
    Dia.
    Dia.
    Lg.
    Mounting
    Thread Size
    Base Magnetic
    Pull, lbf
    Arm
    Lg.
    Batteries
    Included
    Features
    Each
    Lug Mount, Stem Mount—IP67
     
    With SPC Data Output, Bluetooth Connection, and Charging Cord
    0" to 1"0 to 250.00005"0.001±0.00035"±0.008 mmForward, BackwardAGD Group 2
    2 3/16"0.197"0.315"4-48
    12515"YesFine-Adjustment Clamp, Magnetic Release Switch, Tolerance-Checking Go/No-Go Operation, Zero-Position Memory (ABS), Zero-Set Button6539N120000000
     
    Accessories for Variance Indicators

    Economy Electronic Plunger Variance Indicators with Flexible-Arm Magnetic-Base Holder

    Image of Product. Front orientation. Variance Indicators. Economy Electronic Plunger Variance Indicators with Flexible-Arm Magnetic-Base Holder.
    Image of Product. Side View. Side1 orientation. Variance Indicators. Economy Electronic Plunger Variance Indicators with Flexible-Arm Magnetic-Base Holder.

    Side

    View

    Bend and flex the arm of the base to position your indicator—these holders have ball-and-socket segments that lock in place with a lever. The base is magnetic and has a V-groove on the bottom for a solid mount on flat and curved metal surfaces. Flip a switch to release the magnet.
    A spring-loaded plunger extends and retracts from the indicator to take measurements. The measurements display on an easy-to-read LCD screen. Press the zero-set button to start measuring at any point. They have zero-position memory, also known as absolute (ABS) positioning, which retains the measuring position when the indicator is off.
    All can send data to your computer using a USB cord (sold separately). They have SPC data output to wirelessly transfer your measurement data to your device with the push of a button.
    IP67 Enclosure Rating—IP67-rated indicators seal out coolant, water, and dust, so you can take measurements in dirty machining environments.
    Bluetooth Connection—Indicators with Bluetooth can transfer your measurement data wirelessly to your device with the push of a button. You'll need a data transmitter/receiver set (sold separately).
    Tolerance-Checking Go/No-Go Operation—Indicators with tolerance-checking go/no-go operation inform you when an item falls outside your set measurements.
    Distance
    Measured
    Measuring
    Increments
    Accuracy
    Contact Point
    Inch
    Metric,
    mm
    Inch
    Metric,
    mm
    Inch
    Metric
    Counting
    Direction
    Dial Indicator
    Size
    Dial
    Dia.
    Dia.
    Lg.
    Mounting
    Thread Size
    Base Magnetic
    Pull, lbf
    Arm
    Lg.
    Batteries
    Included
    Features
    Each
    Lug Mount, Stem Mount—IP67
     
    With SPC Data Output, Bluetooth Connection, and Charging Cord
    0" to 1"0 to 250.00005"0.001±0.00035"±0.008 mmForward, BackwardAGD Group 2
    2 3/16"0.197"0.315"4-48
    12512"YesMagnetic Release Switch, Tolerance-Checking Go/No-Go Operation, Zero-Position Memory (ABS), Zero-Set Button6549N120000000
     
    Accessories for Variance Indicators

    Economy Electronic Plunger Variance Indicators with Magnetic-Base Holder for Uneven Surfaces

    Image of Product. Front orientation. Variance Indicators. Economy Electronic Plunger Variance Indicators with Magnetic-Base Holder for Uneven Surfaces.
    Image of Product. Side View. Side1 orientation. Variance Indicators. Economy Electronic Plunger Variance Indicators with Magnetic-Base Holder for Uneven Surfaces.

    Side View

    With adjustable magnetic pins that conform to any shape, the base on these variance indicators mounts securely to uneven surfaces. The ball-and-socket arm is highly adjustable and locks in place with a lever, so it holds the indicator in almost any position. For quick dismounting, the base has a magnetic release switch.
    A spring-loaded plunger extends and retracts to measure objects. The measurements are displayed on an LCD screen. Start measuring at any point by pressing the zero-set button. They have zero-position memory, also known as absolute (ABS) positioning, which retains the measuring position when the indicator is off.
    All can send data to your computer using a USB cord (sold separately). They have SPC data output to wirelessly transfer your measurement data to your device with the push of a button.
    IP67 Enclosure Rating—IP67-rated indicators seal out coolant, water, and dust, so you can take measurements in dirty machining environments.
    Bluetooth Connection—Indicators with Bluetooth send measurement data to your device wire-free and without an additional device.
    Tolerance-Checking Go/No-Go Operation—Indicators with tolerance-checking go/no-go operation inform you when an item falls outside your set measurements.
    Distance
    Measured
    Measuring
    Increments
    Accuracy
    Contact Point
    Inch
    Metric,
    mm
    Inch
    Metric,
    mm
    Inch
    Metric
    Counting
    Direction
    Dial Indicator
    Size
    Dial
    Dia.
    Dia.
    Lg.
    Mounting
    Thread Size
    Base Magnetic
    Pull, lbf
    Arm
    Lg.
    Batteries
    Included
    Features
    Each
    Lug Mount, Stem Mount—IP67
     
    With SPC Data Output, Bluetooth Connection, and Charging Cord
    0" to 1"0 to 250.00005"0.001±0.00035"±0.008 mmForward, BackwardAGD Group 2
    2 3/16"0.197"0.315"4-48
    12512"YesMagnetic Release Switch, Tolerance-Checking Go/No-Go Operation, Zero-Position Memory (ABS), Zero-Set Button6579N120000000
     
    Accessories for Variance Indicators
    back to top