Inspection Tools | McMaster-Carr

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Material

System of Measurement

Length

Plug Gauge Size

Character Height

Gauge Measurement Type

Size-Checking Gauge Class

Character Type

Certificate Type

Hardness

Stamp Material

Shank Width

Character

Surface Smoothness, RMS

Shank Length

Shank Thickness

For Maximum Surface Hardness

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3,461 Products

Communication

Tags

Hang throughout facilities to convey information

Labels

Stick onto items to identify or convey information about them

Tamper-Evident Seals

Tamper-Evident Seals

Secure hasps, latches, and other connections to visibly indicate tampering

Fire Hydrant Markers

Fire Hydrant Markers

Label fire hydrants to indicate their flow rate or status

Stamps

Mark surfaces such as metal, cardboard, paper, or fabric with indentations or ink

Measuring and Inspecting

Magnifiers

Workstation, hand-held, headband, and eyeglass magnifiers

Borescopes

Insert the camera into hard-to-reach areas to view them from your smart device or the display

Binoculars

Track moving objects and scan wide areas from far away

Magnetic Particle Flaw Detection Kits

Magnetic Particle Flaw Detection Kits

Everything you need to detect imperfections on and below metal surfaces

Magnetic Particles

Magnetic Particles

Apply to metal and magnetize with a magnetic flaw detector to show defects on and below the surface

Inspection Mirrors

Inspection Mirrors

Reach around corners and obstructions to inspect hard-to-see areas

Monoculars

Magnify still objects from far away to view features you couldn't see with the naked eye

Ultraviolet Inspection Lights

Ultraviolet Inspection Lights

Shine on equipment to detect traces left behind by leaks, rodents, and other contaminants

Microscopes

Enlarge the view of small parts and samples for inspection and assembly

Flaw-Detecting Dyes

Flaw-Detecting Dyes

Reveal flaws and cracks in nonporous material by turning them red under natural light

Cameras

Capture pictures and video, or install on robot arms or conveyor lines to inspect and sort your line

Machine Vision Cameras

Machine Vision Cameras

Inspect objects on conveyor lines for defects such as surface flaws and missing screws

Inspection Cameras

Inspection Cameras

Reach into tight and hard-to-access spots and stream the inspection on your phone or tablet

Coordinate Measuring Machine Plates and Fixtures

Coordinate Measuring Machine Plates and Fixtures

Raise workpieces and position them on a fixture plate

Welding Gauges

Check alignment, corner dimensions, and other weld measurements

Plug Gauges

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

Gauge Blocks

Confirm dies, fixtures, and other workpieces meet precise tolerances and calibrate measuring tools

Variance Indicators

Variance Indicators

Identify small dimensional differences when checking part quality and alignment

Bore Gauges

Insert into a hole and expand the contacts to measure diameter

Machine Tool Indicators

Machine Tool Indicators

Find the exact edge of a workpiece without math or guesswork to quickly align your machining setup

Height Gauges

Measure an object's height and mark workpieces for machining

Bench Centers

Use with a variance indicator to measure a workpiece’s roundness, concentricity, and runout

Calibration Squares

Calibration Squares

Lay horizontally or vertically on CNC machines to check the position of tools with high precision

Shaft Alignment Kits

Shaft Alignment Kits

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

Pipe Flange Aligners

Pipe Flange Aligners

Line up flange holes so they bolt securely and connections won’t leak

Tachometers

Measure the speed of rotating parts on machines such as shafts, gears, and belts

Vibration Monitors

Vibration Monitors

Mount to your machine to continuously monitor vibration and ensure it stays within the proper range

Vibration Meters

Vibration Meters

Spot-check vibration to gauge the health of your machine

Stroboscopes

Shine a bright flashing light at moving belts and pulleys to measure speed and detect wear

Smoke Pens

Produce smoke to observe airflow and detect leaks in HVAC systems; reusable, unlike smoke candles

Surface Roughness Testers

Surface Roughness Testers

Trace the surface of a part to calculate its roughness parameters in Ra, Rp, and Rq

Hardness Testers

Hardness Testers

Determine the Rockwell, Brinell, or Durometer hardness of any material

Leak-Detecting Dyes

Leak-Detecting Dyes

Bright colors help you spot leaks in water and hydraulic systems without using ultraviolet light

Magnetic Field Indicators

Magnetic Field Indicators

Measure the strength of a magnetic field in gauss

Gas Leak Detectors

Gas Leak Detectors

Find gas leaks in pipes, tubes, fittings, tanks, cylinders, and valves

Radiation Detectors

Radiation Detectors

Test for radiation, even in low amounts or from microwave ovens

Smoke Candles

Light the wick for a short burst of smoke to observe airflow and detect leaks in HVAC systems

Smoke Pellets

Detect airflow and leaks in HVAC systems near server rooms and other areas with electronics

Passivation Testers

Passivation Testers

Detect iron in stainless steel parts to confirm they're properly passivated

Smoke Powder

No flame needed—release a burst of powder to detect airflow and leaks in HVAC systems

Torque Gauges

Test the accuracy of torque wrenches and screwdrivers

Compression Testers

Compression Testers

Check engine compression to maintain top performance

Combustion Analyzers

Combustion Analyzers

Measure boiler and furnace combustion efficiency

Stethoscopes

Detect internal mechanical problems like worn parts, excessive vibration, and fluid leaks

Hour Meters

Display running time on a machine so you can schedule preventative maintenance

Force Gauges

Test objects to see how much tension and compression force they can bear

Inspection Indicators

Inspection Indicators

Mount to your equipment for a signal when it's time for maintenance or inspection

Gloss Meters

Measure the gloss of paint, coatings, and surfaces to ensure each product is as shiny as the last

Fabricating and Machining

Magnetic Retrievers

Magnetic Retrievers

Pick up screws, nuts, and other small magnetic objects

V-Blocks

Hold round workpieces

Tooling Balls

Create a height reference point to measure hole centerlines and the distances between them

Sine Plates

Use with gauge blocks to measure angles on your workpiece or set up a part for precision grinding

Fixture Tables

Add clamps, brackets, and other components to build fixtures for welding and assembly

Vises

Secure workpieces in place

Retrievers

Grab and pull objects out of hard-to-reach spots

Setup Blocks

Use as mounting bases and supports to ensure accurate angles and spacing

Lighters

Light flames and recharge for repeated long-term use

Ultraviolet Curing Lamps

Ultraviolet Curing Lamps

Cure adhesives and sealants, inspect parts for quality, or detect leaks

Multitools

A variety of tools and blades all in one

Electrical

Electrical Connectors and Cords

Electrical Connectors and Cords

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

Batteries

Household, button/coin cell, large-cell, and cordless tool batteries

Material Handling

Conveyors

Roller, skate wheel, ball transfer, belt, and vacuum conveyors

Facility and Grounds Maintenance

Paint

Renew, enhance, protect, and change the color of surfaces

Lighting

Lights

Ceiling, wall, portable, adjustable-arm, security, and backup lights as well as flashlights

Light Transmitters

Light Transmitters

Light up small and hard-to-reach areas such as the inside of models, prototypes, and circuit boards

Flashlight Magnifiers

Flashlight Magnifiers

Turn your flashlight into an illuminated magnifying glass

Light Pipes

Concentrate and direct light from the bulb on a circuit board to a display

Safety Equipment

Multi-Gas Detectors

Multi-Gas Detectors

Monitor air for carbon monoxide and combustible gases including methane, hydrogen, and propane

Oxygen Detectors

Oxygen Detectors

Too much or too little oxygen triggers alarms and warning lights

Carbon Dioxide Meters

Carbon Dioxide Meters

Measure and display real-time carbon dioxide levels for indoor ventilation quality

Carbon Monoxide Detectors

Carbon Monoxide Detectors

Alarms, lights, or color changes alert you to the presence of carbon monoxide

Hydrogen Sulfide Detectors

Hydrogen Sulfide Detectors

Alarms and lights alert you to high levels of hydrogen sulfide

Welding Lens Magnifiers

Welding Lens Magnifiers

Attach to welding lenses to enhance details

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