Dusty-Environment Outside Micrometers

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64 Products

Micrometer Type

Digital

The most versatile and simplest-to-use micrometers

62 products

Mechanical

Your classic micrometers, balancing precision with durability

2 products

Performance

4-Way Reading

Measure with either hand, upside down, or right side up

2 products

Wide Range

Switch out the anvil to measure parts of different sizes

10 products

Coolant-Resistant Digital Outside Micrometers

Measure parts inside CNC machines and other places coated with coolant and cutting oil. The display and battery cover are tightly sealed, so spraying and dripping fluids 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.

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

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.

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 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		Accuracy		Measuring Increments							Outside Micrometers		Outside Micrometers with Calibration Certificate
	Inch	Metric, mm	Inch	Metric	Inch	Metric, mm	Thimble Type	Throat Dp.	Frame Material	Enclosure Rating	Mfr. Model No.		Each		Each
Mitutoyo





				Without SPC Data Output

				0" to 1"	0 to 25.4	±0.00005"	±0.001 mm	0.00005"	0.001	Friction	1"	Cast Iron	IP65	293-348-30	2054A54	0000000	2054A74	0000000
				0" to 1"	0 to 25.4	±0.00005"	±0.001 mm	0.00005"	0.001	Ratchet	1"	Cast Iron	IP65	293-344-30	2054A55	000000	2054A75	000000
				0" to 1"	0 to 25.4	±0.00005"	±0.001 mm	0.00005"	0.001	Ratchet Stop	1"	Cast Iron	IP65	293-340-30	2054A53	000000	2054A59	000000
				0" to 1"	0 to 25.4	±0.0001"	±0.0025 mm	0.0001"	0.001	Ratchet	1"	Cast Iron	IP65	293-349-30	2054A65	000000	2054A61	000000
				1" to 2"	25.4 to 50.8	±0.00005"	±0.001 mm	0.00005"	0.001	Ratchet	1 1/4"	Cast Iron	IP65	293-345-30	2054A52	000000	2054A67	000000
				1" to 2"	25.4 to 50.8	±0.00005"	±0.001 mm	0.00005"	0.001	Ratchet Stop	1 1/4"	Cast Iron	IP65	293-341-30	2054A77	000000	———	0
				2" to 3"	50.8 to 76.2	±0.00005"	±0.001 mm	0.00005"	0.001	Ratchet	1 7/8"	Cast Iron	IP65	293-346-30	2054A56	000000	2054A68	000000
				2" to 3"	50.8 to 76.2	±0.00005"	±0.001 mm	0.00005"	0.001	Ratchet Stop	1 7/8"	Cast Iron	IP65	293-342-32	2054A78	000000	———	0
				3" to 4"	76.2 to 101.6	±0.0001"	±0.001 mm	0.00005"	0.001	Ratchet Stop	2 3/8"	Cast Iron	IP65	293-343-32	2054A79	000000	———	0




						With SPC Data Output

						0" to 1"	0 to 25.4	±0.00005"	±0.001 mm	0.00005"	0.001	Friction	1"	Cast Iron	IP65	293-335-30	2295A1	000000	2295A21	000000
						0" to 1"	0 to 25.4	±0.00005"	±0.001 mm	0.00005"	0.001	Ratchet Stop	1"	Cast Iron	IP65	293-330-30	2295A5	000000	2295A51	000000
						0" to 1"	0 to 25.4	±0.00005"	±0.0025 mm	0.00005"	0.001	Ratchet	1"	Cast Iron	IP65	293-334-30	2295A31	000000	———	0
						1" to 2"	25.4 to 50.8	±0.00005"	±0.001 mm	0.00005"	0.001	Friction	1 1/4"	Cast Iron	IP65	293-336-30	2295A2	000000	2295A25	000000
						1" to 2"	25.4 to 50.8	±0.00005"	±0.001 mm	0.00005"	0.001	Ratchet Stop	1 1/4"	Cast Iron	IP65	293-331-30	2295A6	000000	2295A22	000000
						2" to 3"	50.8 to 76.2	±0.00005"	±0.001 mm	0.00005"	0.001	Ratchet Stop	1 7/8"	Cast Iron	IP65	293-332-30	2295A3	000000	2295A23	000000
						3" to 4"	76.2 to 101.6	±0.0001"	±0.0025 mm	0.00005"	0.001	Ratchet Stop	2 3/8"	Cast Iron	IP65	293-333-30	2295A14	000000	2295A24	000000
						4" to 5"	101.6 to 127	±0.0001"	±0.0025 mm	0.0001"	0.001	Ratchet Stop	3"	Cast Iron	IP65	293-350-30	2295A15	000000	2295A26	000000
						5" to 6"	127 to 152.4	±0.0001"	±0.0025 mm	0.0001"	0.001	Ratchet Stop	3 1/2"	Cast Iron	IP65	293-351-30	2295A16	000000	2295A27	000000


						Starrett





										With SPC Data Output

										0" to 1"	0 to 25.4	±0.0001"	±0.002 mm	0.00005"	0.001	Friction	1"	Steel	IP67	733.1XFL-1	85965A881	000000	85965A882	000000


										Other Outside Micrometers





														With SPC Data Output

														0" to 1"	0 to 25	±0.00015"	±0.004 mm	0.00005"	0.001	Ratchet	15/16"	Steel	IP65	—	6289N11	00000	———	0
														1" to 2"	25 to 50	±0.00015"	±0.004 mm	0.00005"	0.001	Ratchet	1 1/4"	Steel	IP65	—	6289N12	000000	———	0
														2" to 3"	50 to 75	±0.00015"	±0.004 mm	0.00005"	0.001	Ratchet	1 3/4"	Steel	IP65	—	6289N13	000000	———	0
														3" to 4"	75 to 100	±0.00015"	±0.004 mm	0.00005"	0.001	Ratchet	2 3/16"	Steel	IP65	—	6289N14	000000	———	0

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	5-Pin SPC Connector × Micro USB-B

Micro USB-B Connection and 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


	Other Cords for Measuring Tool Data Processors



			5-Pin SPC Connector × Micro USB-B	7 ft.	6226N11	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 Cases

Image of Product. Front orientation. Mitutoyo.

		Each
Mitutoyo



	293-330-30, 293-334-30, 293-335-30, 293-340-30, 293-344-30, 293-348-30, 293-349-30, 293-831-30, 293-832-30, 395-371-30	4274N13	000000
	293-331-30, 293-341-30, 293-345-30, 342-351-30, 342-361-30	4274N14	00000

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

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 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.

			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
								4	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) One Micrometer (3"-4" Measuring Range, ±0.0005" Measuring Accuracy)	0" to 4"	0 to 100	0.00005"	0.001	Ratchet	Steel	IP65	—	5698N12	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

Coolant-Resistant Wide-Range Digital Outside Micrometers

Check different-sized parts as you machine them without swapping between tools. These micrometers come with multiple anvils that you switch out, so you don't need to lug around a case of micrometers. Whether you're milling or drilling, the display and battery cover are tightly sealed, so spraying and dripping coolant won't seep in.

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-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		Accuracy		Measuring Increments								Outside Micrometers		Outside Micrometers with Calibration Certificate
	Inch	Metric, mm	Inch	Metric	Inch	Metric, mm	Thimble Type	Throat Dp.	Frame Material	Enclosure Rating	Mfr. Model No.	Includes		Each		Each
Mitutoyo





				With SPC Data Output

				0" to 6"	0 to 152	±0.0003"	±0.008 mm	0.00005"	0.001	Ratchet Stop	3 1/2"	Cast Iron	IP65	340-351-30	Five Calibration Rods Six Anvils	20605A1	0000000	20605A3	0000000
				6" to 12"	152 to 305	±0.0004"	±0.010 mm	0.0001"	0.001	Ratchet Stop	6 1/2"	Cast Iron	IP65	340-352-30	Six Anvils Six Calibration Rods	20605A2	00000000	20605A4	00000000

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

		Each
		1-9	10-49	50-Up
Replacement SR44 Silver Oxide Battery	7604K117	00000	00000	00000

Digital Outside Micrometers for Curved and Flat Surfaces

Swap between two anvils to view curved and flat surface measurements with the same screen. The straight anvil sits against flat surfaces without wiggling. The round anvil hugs curved surfaces, so you don't measure a gap.

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.

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





				With SPC Data Output

				0" to 1"	0 to 25.4	±0.0002"	±0.005 mm	0.00005"	0.001	Friction	1"	Cast Iron	IP65	317-351-30	Flat Anvil Round Anvil	5547N11	0000000
				1" to 2"	25.4 to 50.8	±0.0002"	±0.005 mm	0.00005"	0.001	Friction	1"	Cast Iron	IP65	317-352-30	Flat Anvil Round Anvil	5547N12	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

		Each
		1-9	10-49	50-Up
Replacement SR44 Silver Oxide Battery	7604K117	00000	00000	00000

Outside Micrometers for Tolerance Checking

Dial Display

Confirm parts are within tolerance without twisting the thimble each time. These micrometers don't need batteries, so they're always ready for the job.

Dial Display—Know exactly how far your part falls outside of the tolerance range. Push a button to retract the anvil, then slide your part in. Release and the anvil snaps back to its set position. The needle on the dial shows you the difference in measurement.

								Outside Micrometers
	Measuring Range	Accuracy	Measuring Increments	Thimble Type	Throat Dp.	Frame Material	Mfr. Model No.		Each
Mitutoyo





				With Dial Display

				0" to 1"	±0.00005"	0.00005"	Plain	0.984"	Steel	523-131	6306N11	0000000
				1" to 2"	±0.00005"	0.00005"	Plain	1.378"	Steel	523-132	6306N12	000000

Coolant-Resistant Long-Reach Digital Outside Micrometers

Take thickness measurements of sheet metal and other long, flat parts right inside CNC machines. The display and battery cover are tightly sealed, so spraying and dripping coolant won't seep in. These micrometers have a deep throat to reach the center of workpieces, away from the edge where deformities might skew readings.

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.

	Measuring Range		Accuracy		Measuring Increments							Outside Micrometers		Outside Micrometers with Calibration Certificate
	Inch	Metric, mm	Inch	Metric	Inch	Metric, mm	Thimble Type	Throat Dp.	Frame Material	Enclosure Rating	Mfr. Model No.		Each		Each
Mitutoyo





				With SPC Data Output

				0" to 1"	0 to 25.4	±0.0002"	±0.005 mm	0.001"	0.025	Ratchet Stop	6"	Cast Iron	IP65	389-351-30	20585A76	0000000	20585A11	0000000

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

		Each
		1-9	10-49	50-Up
Replacement SR44 Silver Oxide Battery	7604K117	00000	00000	00000

Digital Outside Micrometers

The simplest-to-use micrometers. Their LCD display gives instant measurements down to 0.00005”—no need to read scales. Swap between inch and metric or set the position to zero, all with the press of a button.

You can always expect accuracy with our micrometers. The anvil and spindle are precision ground to exact dimensions for reliable readings every time.

Ratchet 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.

Zero-Position Memory (ABS)—Retain the micrometer's position when turned off, so you don't need to reset the zero point each time. Also called absolute (ABS) positioning.

Measuring Range		Accuracy		Measuring Increments							Outside Micrometers
Inch	Metric, mm	Inch	Metric	Inch	Metric, mm	Thimble Type	Throat Dp.	Frame Material	Measuring Functions	Enclosure Rating		Each





			Without SPC Data Output

			0" to 1"	0 to 25	±0.00016"	±0.004 mm	0.00005"	0.001	Ratchet	3/4"	Steel	Zero-Position Memory (ABS)	IP54	2091A5	0000000
			1" to 2"	25 to 50	±0.00016"	±0.004 mm	0.00005"	0.001	Ratchet	1 1/8"	Steel	Zero-Position Memory (ABS)	IP54	2091A6	000000

Replacement Batteries

			Pkg.
	Pkg. Qty.		1-9	10-49	50-Up
Replacement CR2032 Lithium Battery	1	7701K34	00000	00000	00000

4-Way-Reading Digital Outside Micrometers


Right Hand	Left Hand

Inverted	Reverse Inverted

Take measurements with either hand, upside down, or right side up. You can read a display from either side of these micrometers and push a button to invert the text when measuring overhead. They're especially handy for hard-to-move parts, such as heavy steel plates.

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

Measuring Range		Accuracy		Measuring Increments							Outside Micrometers
Inch	Metric, mm	Inch	Metric	Inch	Metric, mm	Thimble Type	Throat Dp.	Frame Material	Measuring Functions	Enclosure Rating		Each





			With SPC Data Output

			0" to 1.2"	0 to 30	±0.00016"	±0.004 mm	0.00005"	0.001	Friction	1"	Steel	Zero-Position Memory (ABS)	IP54	2091A31	0000000

Replacement Batteries

			Pkg.
	Pkg. Qty.		1-9	10-49	50-Up
Replacement CR2032 Lithium Battery	1	7701K34	00000	00000	00000