Steel Outside Diameter Gauges

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178 Products

Size Identifying

Thread Identifier Sets

Set includes calipers and gauges to identify external and internal threads

Screw Size Identifiers

Find thread size, screw size, diameter, and drill bit size with one tool.

Threads per Inch and Thread Pitch Identifiers

Determine threads per inch and thread pitch on nuts, bolts, and other fasteners.

Threads per Inch and Center Identifiers

Identify threads per inch on external threads and find the center of your workpiece to line up thread cutting tools.

Acme Thread Identifiers

Identify Acme threads and use as a guide while grinding and cutting Acme threads to a 29° included angle.

Wall-Mount Thread-It Screw,
Bolt, and Nut Size Identifiers

Mount to a wall for easy access, and thread your fastener into holes or onto plugs for quick and accurate size identification.

Thread-It Screw, Bolt, and Nut Size Identifiers

Thread your fastener into holes or onto plugs for quick and accurate size identification.

Pipe, Tubing, and Hose Size Identifiers

Determine pipe size and inner and outer diameter.

Outside Micrometers

Starrett Outside Micrometers

Starrett Outside Micrometers
with Calibration Certificate

These micrometers come with a calibration certificate traceable to NIST that states they've passed a test for accuracy.

Mitutoyo Outside Micrometers

Mitutoyo Outside Micrometers
with Calibration Certificate

These micrometers come with a calibration certificate traceable to NIST that states they've passed a test for accuracy.

Economy Outside Micrometers

Starrett Electronic Outside Micrometers

Starrett Electronic Outside
Micrometers with Calibration Certificate

These micrometers come with a calibration certificate traceable to NIST that states they've passed a test for accuracy.

Coolant-Resistant Starrett Electronic Outside
Micrometers with Calibration Certificate

These micrometers come with a calibration certificate traceable to NIST that states they've passed a test for accuracy.

Coolant-Resistant Starrett
Electronic Outside Micrometers

Water-Resistant Economy
Electronic Outside Micrometers

IP54 rated for limited protection from dust and splashing water.

Economy Electronic Outside Micrometers

Coolant-Resistant Economy
Electronic Outside Micrometers

Take measurements in dirty machining environments—these micrometers are rated IP65, so they seal out coolant, water, and dust.

Economy Outside Micrometers with Analog Counter

Wide-Range Outside Micrometers

These micrometers come with interchangeable anvils of varying lengths, giving them a wide measuring range.

Economy Outside Micrometer Sets

Mitutoyo Electronic Outside Micrometer Sets

A screen makes measurements easy to read.

Starrett Outside Micrometer
Sets with Calibration Certificate

Each micrometer in these sets comes with a calibration certificate traceable to NIST that states it has passed a test for accuracy.

Economy Electronic Outside Micrometer Sets

Easily read measurements displayed on the screen.

Starrett Outside Micrometer Sets

Outside Micrometers for Can Seams

Check if a can is properly sealed by inspecting the width, height, and depth of the seam.

Outside Micrometers for Pipe,
Tubing, and Flat Surfaces

Switch out anvils depending on the shape of the item you're measuring. Use the rounded anvil to measure the wall thickness of pipe, tubing, and other curved surfaces. Use the flat anvil to measure flat surfaces.

Outside Micrometers for Pipe, Tubing, and
Flat Surfaces with Calibration Certificate

These micrometers come with a calibration certificate traceable to NIST that states they've passed a test for accuracy.

Electronic Outside Micrometers for
Pipe, Tubing, and Flat Surfaces

Swap out the anvil on these micrometers for a better fit on curved and flat parts.

Outside Micrometers for Tolerance Checking

Confirm a part is within your set tolerance.

Outside Micrometers for End
Mills, Taps, and Reamers

A V-shaped anvil is designed to measure the outside diameter of cutting tools with three flutes.

Outside Micrometers for Thin Materials

Measure the thickness of paper and other thin materials without distorting them.

Outside Micrometers for Wire Crimps

Measure the height of your crimp to confirm the wire connection is secure and accurate in size.

Outside Micrometers for Gears

Disc-shaped measuring faces fit into recesses to measure the thickness of gear teeth.

Outside Micrometers for Gears
with Calibration Certificate

These micrometers come with a calibration certificate traceable to NIST that states they've passed a test for accuracy.

Outside Micrometers for Screw
Threads with Calibration Certificate

These micrometers come with a calibration certificate traceable to NIST that states they've passed a test for accuracy.

Outside Micrometers for Grooves and Keyways

The anvil and spindle are pointed for measuring small grooves and keyways.

Outside Micrometers for Screw Threads

Measure thread accuracy in screw-cutting operations. The anvil and spindle have a 60° point for fitting into thread grooves.

Outside Micrometers for Grooves and
Keyways with Calibration Certificate

These micrometers come with a calibration certificate traceable to NIST that states they've passed a test for accuracy.

Electronic Chamfer Gauges

Whether a chamfered edge is in a screw hole or on the end of a rotary shaft, these gauges find its diameter. The calculated diameter displays on the LCD screen for quick readings.

Size Checking

Go/No-Go Outside Diameter Gauges

Also known as snap gauges for how they snap around rods, shafts, and other cylindrical objects, these gauges quickly check if an outside diameter is within tolerance.

Go/No-Go Outside Diameter
Gauges with Calibration Certificate

With a calibration certificate traceable to NIST that says they've passed a test for accuracy, you can trust these gauges to confirm if your object's outer diameter is within tolerance. They're also known as snap gauges because they snap onto rods, shafts, and other cylindrical objects.

Shallow Inside/Outside Diameter Gauges

Mount your variance indicator onto these gauges to measure the diameters of rims, grooves, and shallow holes.

Size Identifying

Thread Identifier Sets

Screw Size Identifiers

Threads per Inch and Thread Pitch Identifiers

Threads per Inch and Center Identifiers

Acme Thread Identifiers

Wall-Mount Thread-It Screw,Bolt, and Nut Size Identifiers

Thread-It Screw, Bolt, and Nut Size Identifiers

Pipe, Tubing, and Hose Size Identifiers

Outside Micrometers

Starrett Outside Micrometers

Starrett Outside Micrometerswith Calibration Certificate

Mitutoyo Outside Micrometers

Mitutoyo Outside Micrometerswith Calibration Certificate

Economy Outside Micrometers

Starrett Electronic Outside Micrometers

Starrett Electronic OutsideMicrometers with Calibration Certificate

Coolant-Resistant Starrett Electronic OutsideMicrometers with Calibration Certificate

Coolant-Resistant StarrettElectronic Outside Micrometers

Water-Resistant EconomyElectronic Outside Micrometers

Economy Electronic Outside Micrometers

Coolant-Resistant EconomyElectronic Outside Micrometers

Economy Outside Micrometers with Analog Counter

Wide-Range Outside Micrometers

Economy Outside Micrometer Sets

Mitutoyo Electronic Outside Micrometer Sets

Starrett Outside MicrometerSets with Calibration Certificate

Economy Electronic Outside Micrometer Sets

Starrett Outside Micrometer Sets

Outside Micrometers for Can Seams

Outside Micrometers for Pipe,Tubing, and Flat Surfaces

Outside Micrometers for Pipe, Tubing, andFlat Surfaces with Calibration Certificate

Electronic Outside Micrometers forPipe, Tubing, and Flat Surfaces

Outside Micrometers for Tolerance Checking

Outside Micrometers for EndMills, Taps, and Reamers

Outside Micrometers for Thin Materials

Outside Micrometers for Wire Crimps

Outside Micrometers for Gears

Outside Micrometers for Gearswith Calibration Certificate

Outside Micrometers for ScrewThreads with Calibration Certificate

Outside Micrometers for Grooves and Keyways

Outside Micrometers for Screw Threads

Outside Micrometers for Grooves andKeyways with Calibration Certificate

Electronic Chamfer Gauges

Electronic Chamfer Gauges

Size Checking

Go/No-Go Outside Diameter Gauges

Go/No-Go Outside DiameterGauges with Calibration Certificate

Shallow Inside/Outside Diameter Gauges

Wall-Mount Thread-It Screw,
Bolt, and Nut Size Identifiers

Starrett Outside Micrometers
with Calibration Certificate

Mitutoyo Outside Micrometers
with Calibration Certificate

Starrett Electronic Outside
Micrometers with Calibration Certificate

Coolant-Resistant Starrett Electronic Outside
Micrometers with Calibration Certificate

Coolant-Resistant Starrett
Electronic Outside Micrometers

Water-Resistant Economy
Electronic Outside Micrometers

Coolant-Resistant Economy
Electronic Outside Micrometers

Starrett Outside Micrometer
Sets with Calibration Certificate

Outside Micrometers for Pipe,
Tubing, and Flat Surfaces

Outside Micrometers for Pipe, Tubing, and
Flat Surfaces with Calibration Certificate

Electronic Outside Micrometers for
Pipe, Tubing, and Flat Surfaces

Outside Micrometers for End
Mills, Taps, and Reamers

Outside Micrometers for Gears
with Calibration Certificate

Outside Micrometers for Screw
Threads with Calibration Certificate

Outside Micrometers for Grooves and
Keyways with Calibration Certificate

Go/No-Go Outside Diameter
Gauges with Calibration Certificate