Metric Indicators | McMaster-Carr

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1,803 Products

Measuring and Inspecting

Variance Indicators

Variance Indicators

Identify small dimensional differences when checking part quality and alignment

Thread Size Identifiers

Thread Size Identifiers

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

Outside Micrometers

Outside Micrometers

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

Depth Gauges

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

Variance Indicator Contact Points

Variance Indicator Contact Points

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

Calipers

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

Rulers

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

Height Gauges

Measure an object's height and mark workpieces for machining

Depth Micrometers

Depth Micrometers

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

Micrometer Heads

Micrometer Heads

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

Thickness Gauges

Thickness Gauges

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

Inside Hole Calipers

Inside Hole Calipers

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

Feeler Gauges

Check gaps and alignment between machine parts and other surfaces

Inside Hole Micrometers

Inside Hole Micrometers

Find the inside diameter of cylinders and rings

Squares

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

Staff Gauges

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

Precision Measuring Tool Kits

Precision Measuring Tool Kits

Multiple precision measuring tools in one convenient case

Bore Gauges

Insert into a hole and expand the contacts to measure diameter

Plug Gauges

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

Liquid-Level Tape Measures

Liquid-Level Tape Measures

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

Combination Square Blades

Combination Square Blades

Connect to a combination square head to create a combination square

Parallel Rules

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

Transfer Punches

Transfer Punches

Mark the center of an existing hole onto a separate workpiece

Layout Compasses

Layout Compasses

Draw circles and transfer distance measurements

Straightedges

Draw straight lines and check the straightness of surfaces

Position Indicators

Position Indicators

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

Load Cells

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

Counters

Record and display the number of times events or processes occur

Scales

Bench-top, hanging, floor, and conveyor scales

Chemistry Meters

Chemistry Meters

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

Communication

Audible Alarms/Indicator Lights

Audible Alarms/Indicator Lights

Alert people with both light and sound

Indicator Lights

Indicator Lights

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

Fabricating and Machining

3D Printer Probes

3D Printer Probes

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

Electrical

Sensor Switches

Sensor Switches

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

Electrical Connectors and Cords

Electrical Connectors and Cords

Supply power to equipment by combining plugs, sockets, receptacles, and cords

Material Handling

Robot Tool Calibration Styli

Robot Tool Calibration Styli

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

Fastening and Joining

Torque Wrenches

Torque Wrenches

Avoid overtightening and damaging fasteners by applying a specific torque

Washers

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

Fluid Handling

Sights

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

RTDs

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

Differential Pressure Transmitters

Differential Pressure Transmitters

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

Building and Machinery Hardware

Indicating Knobs

Indicating Knobs

Control devices and view settings at a glance

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)