3" Calipers | McMaster-Carr

No longer than a pencil for quick measurements on the go. Made entirely of metal, these calipers won't break if dropped or short-circuit if rinsed or rained on.

Measuring Range		Accuracy		Measuring Increments						Calipers
Inch	Metric, mm	Inch	Metric	Inch	Metric, mm	Fractional Increments	Overall Lg.	Body Material	Jaw Material		Each



	0" to 3"	0 to 76	±0.0312"	±0.80 mm	0.03125"	1	1/32"	4 3/4"	Stainless Steel	Stainless Steel	2287A17	000000

Coolant-Resistant Digital Outside Micrometer Sets

Keep a collection of digital micrometers handy to measure parts of different sizes. These micrometers come in a convenient case to store and organize them in one place. They're a must-have for machine shops—each display and battery cover is tightly sealed, so spraying and dripping coolant won't seep in.

With an LCD display, these micrometers give instant measurements—no need to read scales. Swap between inch and metric or set the position to zero, all with the press of a button. You don't need to reset the zero point since they retain their position when turned off, also known as absolute (ABS) positioning.

Mitutoyo—The go-to for machinists and engineers. Every part is made within a Mitutoyo automated factory and tested in-house in Japan. The spindle glides as you turn the thimble with a weighty, silky-smooth feel.

With SPC Data Output—Send measurements to a computer or data processor to store, analyze, and manage data. You'll need a data cable or SPC wireless transmitter and receiver.

Ratchet Thimble/Ratchet-Stop Thimble—Best for consistent, repeatable measurements. The spindle stops extending the moment it reaches your part, so it won’t overtighten. Hear and feel a satisfying click that confirms you’ve applied the right amount of pressure.

			Measuring Range		Measuring Increments
	No. of Micrometers	Includes	Inch	Metric, mm	Inch	Metric, mm	Thimble Type	Frame Material	Enclosure Rating	Mfr. Model No.		Each
Mitutoyo





				With SPC Data Output

				3	One Micrometer (0"-1" Measuring Range, ±0.00005" Measuring Accuracy) One Micrometer (1"-2" Measuring Range, ±0.00005" Measuring Accuracy) One Micrometer (2"-3" Measuring Range, ±0.00005" Measuring Accuracy)	0" to 3"	0 to 76.2	0.00005"	0.001	Ratchet Stop	Steel	IP65	293-960-32	5566N11	0000000


				Other Outside Micrometers





								With SPC Data Output

								3	One Micrometer (0"-1" Measuring Range, ±0.00015" Measuring Accuracy) One Micrometer (1"-2" Measuring Range, ±0.00015" Measuring Accuracy) One Micrometer (2"-3" Measuring Range, ±0.0005" Measuring Accuracy)	0" to 3"	0 to 75	0.00005"	0.001	Ratchet	Steel	IP65	—	5698N11	000000

Accessories and Replacements for Outside Micrometers

SPC Data Cables


Mitutoyo Data Out Switch B × 10-Pin Mitutoyo Connector	Mitutoyo Data Out Switch B × USB-A

USB-A Connection—Plug micrometers with SPC data output directly into your computer.

10-Pin Mitutoyo Connector—Connect micrometers with SPC data output to a Mitutoyo miniprocessor or multiplexer.

	Lg.		Each
Mitutoyo



	Mitutoyo Data Out Switch B × 10-Pin Mitutoyo Connector	40"	20395A83	000000
	Mitutoyo Data Out Switch B × 10-Pin Mitutoyo Connector	80"	20395A84	000000
	Mitutoyo Data Out Switch B × USB-A	80"	2429N2	000000

SPC Wireless Transmitters

Mitutoyo Data Out Switch B

Connection

Wirelessly send measurements from micrometers with SPC data output to your computer. You'll also need a receiver.

Electrical Connection	Mfr. Series		Each
Mitutoyo Data Out Switch B	U-WAVE-T	2424N2	0000000

SPC Wireless Receivers

Wirelessly send measurements from micrometers with SPC data output to your computer. You'll also need a transmitter.

	For Mfr. Series		Each
Mitutoyo



	USB-A	U-WAVE-T	2412N1	0000000

Replacement Batteries

			1-9	10-49	50-Up
Replacement SR44 Silver Oxide Battery	7604K117	Each	00000	00000	00000
Replacement CR2032 Lithium Battery	7701K34	Pkg. of 1	0000	0000	0000

Outside Micrometer Sets

Stock up your shop so you always have the measuring range you need. These micrometers come in a convenient case to store and organize them in one place.

To find your exact measurements, read the scales on the sleeve and thimble. These micrometers are free of electronic components that could break if dropped or short-circuit if wet. You don't have to replace any batteries, so they're always ready for the job.

Starrett—Precision machined and tested in the U.S. These Starrett micrometers come packaged in their iconic wood case, so you'll be able to spot them on the busiest of bench tops.

Calibration Certificate—Choose these micrometers when precision measurements are required for quality control or by regulation. The certificate is traceable to NIST, so you can be confident your measurements are correct and consistent.

Friction Thimble—Control how tightly the spindle closes on your part without the risk of damaging it. You can keep extending the spindle in small increments once it reaches your workpiece but not enough to overtighten. The thimble will start to resist turning to let you know you’ve applied the right amount of pressure.

Ratchet-Stop Thimble—Best for consistent, repeatable measurements. The spindle stops extending the moment it reaches your part, so it won’t overtighten. Hear and feel a satisfying click that confirms you’ve applied the right amount of pressure.

									Outside Micrometers		Outside Micrometers with Calibration Certificate
	No. of Micrometers	Includes	Measuring Range	Measuring Increments	Thimble Type	Frame Material	Measurement Scale Type	Mfr. Model No.		Each		Each
Mitutoyo



		3	One Micrometer (0"-1" Measuring Range, ±0.0001" Measuring Accuracy, Friction Thimble) One Micrometer (1"-2" Measuring Range, ±0.0001" Measuring Accuracy, Friction Thimble) One Micrometer (2"-3" Measuring Range, ±0.0001" Measuring Accuracy, Ratchet-Stop Thimble)	0" to 3"	0.0001"	Friction/Ratchet Stop	Cast Iron	Vernier	103-922	85205A71	0000000	85205A91	0000000


		Starrett



				3	One Micrometer (0"-1" Measuring Range) One Micrometer (1"-2" Measuring Range) One Micrometer (2"-3" Measuring Range)	0" to 3"	0.0001"	Ratchet Stop	Steel	Vernier	ST436.1AXRLZ	2044A424	000000	2044A83	000000


				Other Outside Micrometers



						3	One Micrometer (0"-1" Measuring Range, ±0.00016" Measuring Accuracy) One Micrometer (1"-2" Measuring Range, ±0.00016" Measuring Accuracy) One Micrometer (2"-3" Measuring Range, ±0.0002" Measuring Accuracy)	0" to 3"	0.0001"	Ratchet Stop	Steel	—	—	2114A47	000000	———	0