Dials | McMaster-Carr

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7,400 Products

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Variance Indicators

Variance Indicators

Identify small dimensional differences when checking part quality and alignment

Indicating Knobs

Indicating Knobs

Control devices and view settings at a glance

All Results

Measuring and Inspecting

Variance Indicators

Variance Indicators

Identify small dimensional differences when checking part quality and alignment

Variance Indicator Clamps

Variance Indicator Clamps

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

Variance Indicator Backs

Variance Indicator Backs

Replace the back on your variance indicator

Variance Indicator Contact Point Adapters

Variance Indicator Contact Point Adapters

Convert variance indicators to work with inch-size contact points or measure hard-to-reach spots

Variance Indicator Holder Posts

Variance Indicator Holder Posts

Connect holder bases to clamps to hold variance indicators

Variance Indicator Depth Base Attachments

Variance Indicator Depth Base Attachments

Insert the stem of your variance indicator to convert it into a depth gauge

Variance Indicator Hole Attachments

Variance Indicator Hole Attachments

Fasten to variance indicators to measure inside holes and around obstructions

Variance Indicator Contact Points

Variance Indicator Contact Points

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

Protractors

Set bevels and measure angles with everything from pocket-size to long-arm protractors

Calipers

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

Height Gauges

Measure an object's height and mark workpieces for machining

Thickness Gauges

Thickness Gauges

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

Depth Gauges

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

Variance Indicator Collets

Variance Indicator Collets

Hold the stem of plunger-style indicators for custom mounting jobs, such as creating depth gauges

Precision Measuring Tool Sets

Precision Measuring Tool Sets

Multiple precision measuring tools in one convenient case

Flatness Gauges

Flatness Gauges

Determine if the flatness of surface plates, lapping plates, and other surfaces is within tolerance

Go/No-Go Outside Diameter Gauges

Go/No-Go Outside Diameter Gauges

Snap on rods and shafts to check if their outside diameters are within tolerance

Outside Micrometers

Outside Micrometers

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

Bore Gauge Calibrators

Bore Gauge Calibrators

Set and check the accuracy of two-point bore gauges

Bore Gauges

Insert into a hole and expand the contacts to measure diameter

Squareness Gauges

Squareness Gauges

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

Chamfer Gauges

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

Countersink Gauges

Countersink Gauges

Catch sizing errors in countersunk holes to keep fasteners from protruding and creating weak points

Humidity Meters

Humidity Meters

Measure relative humidity without complex calculations

Thermometers

Monitor temperature in tanks, pipes, control panels, and other equipment

Shaft Alignment Kits

Shaft Alignment Kits

Confirm that shafts are aligned or measure the degree of their misalignment

Scales

Bench-top, hanging, floor, and conveyor scales

Tire Pressure Test Gauges

Tire Pressure Test Gauges

Calibrate the accuracy of tire pressure and tire inflation gauges

Fuel Injection Pressure Testers

Fuel Injection Pressure Testers

Check fuel injection pressure to maintain your car's gas mileage

Tire Gauges

Check tire pressure

Building and Machinery Hardware

Indicating Knobs

Indicating Knobs

Control devices and view settings at a glance

Fluid Handling

Pressure Gauges

Pressure Gauges

Measure pressure in pumps, filters, regulators, and process lines

Pressure and Vacuum Gauges

Pressure and Vacuum Gauges

Measure pressure and vacuum in air and fluid lines, pumps, and refrigeration systems

Vacuum Gauges

Take vacuum readings in pumps, packaging equipment, and suction lines

Differential Pressure Gauges

Differential Pressure Gauges

Display the difference in pressure between two points in your air and fluid systems

Vacuum Test Gauges

Vacuum Test Gauges

Verify that equipment is taking accurate vacuum measurements

Differential Pressure and Vacuum Gauges

Differential Pressure and Vacuum Gauges

Show changes in pressure and vacuum to monitor fans, blowers, and filters

Pressure Test Gauges

Pressure Test Gauges

Check and calibrate pressure gauges, transmitters, and equipment to maintain accuracy

Electrical

Manual Switches

Manual Switches

Everything from toggle, push-button, and rocker switches to foot switches

Potentiometers

Control speed, volume, and light intensity by varying electrical flow; also known as rheostats

Limit Switches

Turn equipment on or off when objects touch the actuator; often used for conveyors and bin filling

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