Metric Indicators | McMaster-Carr

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2,260 Products

Variance Indicators

Electronic Plunger Variance Indicators

Mitutoyo Electronic Plunger Variance Indicators

Read measurements on an LCD instead of a dial

21 products

Easy-Read Mitutoyo Electronic Plunger Variance Indicators with Calibration Certificate

The larger LCD is easier to read than other Mitutoyo indicators

29 products

Mitutoyo Electronic Plunger Variance Indicators with Calibration Certificate

Read measurements on an LCD instead of a dial

17 products

Easy-Read Mitutoyo Electronic Plunger Variance Indicators

The larger LCD is easier to read than other Mitutoyo indicators

19 products

Remote-Reading Compact Electronic Plunger Variance Indicators

Read measurements from up to 4 ft. away

7 products

Coolant-Resistant Economy Electronic Plunger Variance Indicators

IP67 rated to seal out dust, coolant, and water from temporary submersion

11 products

Compact Mitutoyo Electronic Plunger Variance Indicators

The slim design fits in tight spots

9 products

Starrett Electronic Plunger Variance Indicators

Read measurements on an LCD instead of a dial

6 products

Economy Electronic Plunger Variance Indicators

Read measurements on an LCD instead of a dial

3 products

Quick-Read Mitutoyo Electronic Plunger Variance Indicators with Calibration Certificate

LCD backlighting changes colors when measurements are out of tolerance

6 products

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

Stick the magnetic base onto metal surfaces while measuring

6 products

Compact Mitutoyo Electronic Plunger Variance Indicators with Calibration Certificate

The slim design fits in tight spots

9 products

Starrett Electronic Plunger Variance Indicators with Calibration Certificate

Read measurements on an LCD instead of a dial

8 products

Quick-Read Mitutoyo Electronic Plunger Variance Indicators

The LCD backlighting changes colors when measurements are out of tolerance

6 products

Electronic Back Plunger Variance Indicators with Calibration Certificate

Read measurements on the LCD from above

4 products

Water-Resistant Mitutoyo Electronic Plunger Variance Indicators

IP53 rated for limited protection from dust and spraying water

10 products

Water-Resistant Mitutoyo Electronic Plunger Variance Indicators with Calibration Certificate

IP53 rated for limited protection from dust and spraying water

10 products

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

Position the arm by adjusting joints at the top, middle, and bottom

5 products

Electronic Plunger Variance Indicators with Calibration Certificate

Read measurements on an LCD instead of a dial

4 products

Economy Electronic Plunger Variance Indicators with Fractional Display

Display readings in fractional and decimal increments

2 products

Economy Electronic Quick-Read Plunger Variance Indicators with Calibration Certificate

The LCD backlighting changes colors when measurements are out of tolerance

5 products

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

Bend and flex the ball-and-socket arm of the base to position your indicator

5 products

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

Magnetic pins conform to any shape for mounting on uneven surfaces

5 products

Dial Lever Variance Indicators

Mitutoyo Dial Lever Variance Indicators

The lever-style contact point pivots as it comes into contact with a surface

13 products

Mitutoyo Dial Lever Variance Indicator Sets

Include additional contact points and mounting accessories

13 products

Interapid Dial Lever Variance Indicators

Measure larger ranges than with our other lever-style indicators

13 products

Dial Plunger Variance Indicators

Economy Dial Plunger Variance Indicators

The dial moves clockwise as the plunger extends and retracts

4 products

Mitutoyo Plus/Minus Dial Plunger Variance Indicators

Determine variance from a baseline without doing any math

1 product

Continuous Dial Plunger Variance Indicators with Calibration Certificate

The dial moves clockwise as the plunger extends and retracts

8 products

Mitutoyo Plus/Minus Dial Plunger Variance Indicators with Calibration Certificate

Determine variance from a baseline without doing any math

1 product

Plus/Minus Dial Plunger Variance Indicators with Calibration Certificate

Determine variance from a baseline without doing any math

5 products

Combination Dial Plunger Variance Indicators with Calibration Certificate

Take direct and comparative measurements with the same indicator

4 products

Electronic Lever Variance Indicators

Read measurements on an LCD instead of a dial

3 products

Other Products

Thread Size Identifiers

Confirm your fastener's thread size, pitch, or threads per inch

20 products

Height Gauges

Measure an object's height and mark workpieces for machining

27 products

Rulers

Horizontal, vertical, circumference, center-finding, and pica rulers

238 products

Depth Gauges

Reach into slots, counterbores, and other holes to measure depth

25 products

Calipers

Take inside, outside, and depth measurements with more precision than a ruler

172 products

Variance Indicator Contact Points

Attach to your variance indicator to make contact with the workpiece being measured

12 products

Variance Indicator Clamps

Secure and position indicators, arms, and other components on holders

7 products

Outside Micrometers

Apply even pressure to objects to measure thickness more precisely than thickness gauges

107 products

Depth Micrometers

Measure slots, counterbores, and other holes more precisely than depth gauges

23 products

Thickness Gauges

Move the thumb lever to quickly check the thickness of flat stock, pipe, or tubing

14 products

Variance Indicator Lifting Levers

Replace the cap on your variance indicator to help lift the spindle

1 product

Parallel Rules

Draw parallel lines, as well as circles, arcs, and angles

1 product

Micrometer Heads

Mount on jigs, fixtures, and machine tools to position equipment and measure length

28 products

Inside Hole Calipers

Measure hard-to-reach areas, such as internal grooves and slots

12 products

Position Indicators

Track components on rotating spindles or lead screws to help adjust machinery quickly and precisely

16 products

Chamfer Gauges

Check the diameter of chamfered edges to make sure they're within tolerance

9 products

Inside Hole Micrometers

Find the inside diameter of cylinders and rings

9 products

Thermometer Cooling Jackets

Connect to a compressed air or water line to keep infrared thermometer transmitters from overheating

1 product

Audible Alarms/Indicator Lights

Alert people with both light and sound

18 products

Height Gauge Calibrators

Ensure height gauges are accurate

3 products

Squareness Gauges

Check frames and machined parts to see if they are leaning or uneven

3 products

Transfer Punches

Mark the center of an existing hole onto a separate workpiece

73 products

Chemistry Meters

Take water-chemistry measurements more precisely than test strips and swabs

2 products

Step Gauges

Check step height, gap width, and distance between slots to make sure machine and engine parts align

2 products

Bore Gauges

Insert into a hole and expand the contacts to measure diameter

39 products

Indicator Lights

Call attention to hazards and changes in status with flashing, strobe, and other lights

16 products

3D Printer Probes

Map the ups and downs of print surfaces so printers extrude at the proper height

1 product

Plug Gauges

Verify the diameter or threads of machined holes in finished parts; also called pin gauges

185 products

Noncontact Temperature Sensors

Monitor the temperature of hazardous, sensitive, and hard-to-reach materials without touching them

6 products

Outside Micrometer Tips

Adapt your micrometer to measure curved and irregularly shaped objects, such as gear teeth and pipe

1 product

Sensor Switches

Detect moving objects from a distance, triggering a circuit to open or close

625 products

Feeler Gauges

Check gaps and alignment between machine parts and other surfaces

105 products

Squares

Check 90° angles during layout work with combination, angle, or pipefitters' squares

22 products

Precision Measuring Tool Sets

Multiple precision measuring tools in one convenient case

10 products

Micrometer Check Gauges

Confirm your outside or depth micrometers are accurate

1 product

Robot Tool Changer Calibration Styli

Calibrate robot arm movement for precision in tasks such as attaching fasteners

1 product

Threaded Hole Location Gauges

Pinpoint the true center of threaded holes to precisely align and measure parts

31 products

Torque Wrenches

Avoid overtightening and damaging fasteners by applying a specific torque

23 products

Load Cells

Measure forces and send them to computers to monitor and trigger actions in machinery

15 products

Washers

Nearly every size and shape imaginable, from flat washers to clipped to curved

15 products

Liquid-Level Tape Measures

Lower into deep containers, such as tanks, to check the level of oil and other fluids

27 products

Indicating Knobs

Control devices and view settings at a glance

6 products

Calibration Rods

Check and set micrometers and other measuring tools

8 products

Sights

Observe and monitor the contents of pipes, tanks, and other containers

6 products

RTDs

Measure and transmit liquid, gas, and surface temperature more precisely than thermocouples

5 products

Staff Gauges

Typically mounted to walls and tanks for measuring the level of liquids, such as water, fuel, and oil

4 products

Differential Pressure Transmitters

Relay pressure changes in heating, cooling, and pumping systems to controllers and remote displays

3 products

Straightedges

Draw straight lines and check the straightness of surfaces

3 products

Combination Square Blades

Connect to a combination square head to create a combination square

2 products

Counters

Record and display the number of times events or processes occur

2 products

Layout Compasses

Draw circles and transfer distance measurements

2 products

Electrical Sockets

Pair with plugs or receptacles to transmit power or data

1 product

Scales

Bench-top, hanging, floor, and conveyor scales

1 product

Terminal Blocks

Create tidy rows of wire connections that you can identify, test, and adjust on the spot

8 products