Analog Micrometers | McMaster-Carr

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58 Products

Outside Micrometers

With Analog Display

Your classic micrometers, balancing precision with durability. Read the scales on the sleeve and thimble to find your exact measurements. These micrometers don't need batteries, so they're always ready for the job.

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

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.

McMaster-Carr Approved—The performance of brand-name micrometers without the cost.

With Analog Display—Watch the display update as the spindle moves for easy-to-read, trustworthy measurements.

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







				With Analog Display

				0" to 1"	±0.0001"	0.0001"	Friction	1"	Cast Iron	Vernier	193-211	2041A12	0000000	2041A22	0000000


				1" to 2"	±0.0001"	0.0001"	Friction	1 1/4"	Cast Iron	Vernier	193-212	2041A14	000000	2041A23	000000


				Starrett







								With Analog Display

								0" to 1"	±0.00005"	0.0001"	Ratchet Stop	1"	Cast Iron	Vernier	T216XRL-1	8585A51	000000	8585A83	000000


								McMaster-Carr Approved







												With Analog Display

												0" to 1"	±0.00016"	0.0001"	Ratchet Stop	1"	Steel	Vernier	—	2115A1	00000	———	0


												1" to 2"	±0.00016"	0.0001"	Ratchet Stop	1 1/4"	Steel	Vernier	—	2115A2	000000	———	0
												2" to 3"	±0.0002"	0.0001"	Ratchet Stop	1 3/4"	Steel	Vernier	—	2115A3	000000	———	0
												3" to 4"	±0.0002"	0.0001"	Ratchet Stop	2 1/4"	Steel	Vernier	—	2115A4	000000	———	0

Replacement Micrometer Cases

	For Mfr. Model No.
Mitutoyo


193-211, 295-153, 295-253	4274N12	000000

Outside Micrometers for Pipe and Tubing

Measure the thickness of pipe and tube walls. The round anvil hugs curved surfaces, so you don't measure a gap.

To find your exact measurements, read the scales on the sleeve and thimble. You don't have to replace any batteries, so these micrometers are always ready for the job.

With Analog Display—Watch the display update as the spindle moves for easy-to-read, trustworthy measurements.

									Outside Micrometers		Outside Micrometers with Calibration Certificate
	Measuring Range	Accuracy	Measuring Increments	Thimble Type	Spindle Tip Shape	Throat Dp.	Frame Material	Mfr. Model No.		Each		Each
Mitutoyo







				With Analog Display

				0" to 1"	±0.00015"	0.0001"	Ratchet Stop	Flat	0.984"	Cast Iron	295-153	8654A11	0000000	8654A13	0000000


				0" to 1"	±0.00015"	0.0001"	Ratchet Stop	Round	0.984"	Cast Iron	295-253	8654A12	000000	8654A14	000000

Replacement Micrometer Cases

	For Mfr. Model No.
Mitutoyo


193-211, 295-153, 295-253	4274N12	000000

Mitutoyo Depth Micrometers

Change out the steel extension rods supplied in 1" incremental lengths to measure the depth of holes, slots, shoulders, and projections. The thimble has a constant-force mechanism, so that once the spindle contacts the surface of the measured object, it will stop tightening. This ensures repeatable measurements and prevents over-tightening.

	Micrometers													Replacement Cases
				Base			Extension Rods
	Distance Measured Range	Accuracy	Measuring Increments	Wd.	Lg.	Material	No. of	Lg.	Dia.	Overall Ht.	Mfr. Model No.		Each		Each
Ratchet Thimble



		0" to 4"	±0.00012"	0.001"	2 1/2"	5/8"	Aluminum	4	1", 2", 3", 4"	5/32"	8"	129-127	20365A12	0000000	4266N11	000000


		0" to 4"	±0.00012"	0.001"	4"	5/8"	Aluminum	4	1", 2", 3", 4"	5/32"	8"	129-131	20365A13	000000	4266N11	00000
		0" to 6"	±0.00012"	0.001"	2 1/2"	5/8"	Aluminum	6	1", 2", 3", 4", 5", 6"	5/32"	10"	129-128	20365A14	000000	———	0
		0" to 6"	±0.00012"	0.001"	4"	5/8"	Aluminum	6	1", 2", 3", 4", 5", 6"	5/32"	10"	129-132	20365A15	000000	———	0
		0" to 12"	±0.00012"	0.001"	4"	5/8"	Aluminum	12	1", 2", 3", 4", 5", 6", 7", 8", 9", 10", 11", 12"	5/32"	16"	129-150	20365A17	000000	———	0

Outside Micrometers for Small Holes, Grooves, and Keyways

With Analog Display

Thin as a pencil point, the anvil and spindle slip into narrow spaces where standard ones won't fit. They're often used to measure the outer dimensions of grooves in pins, O-rings, and other small parts.

To find your exact measurements, read the scales on the sleeve and thimble. You don't have to replace any batteries, so these micrometers are always ready for the job.

With Analog Display—Watch the display update as the spindle moves for easy-to-read, trustworthy measurements.

										Outside Micrometers		Outside Micrometers with Calibration Certificate
	Measuring Range	Accuracy	Measuring Increments	Thimble Type	Spindle Point Angle	Throat Dp.	Frame Material	Measurement Scale Type	Mfr. Model No.		Each		Each
Mitutoyo







				With Analog Display

				0" to 1"	±0.00015"	0.001"	Ratchet Stop	15°	1.496"	Cast Iron	Vernier	142-177	8653A11	0000000	8653A13	0000000


				0" to 1"	±0.00015"	0.001"	Ratchet Stop	30°	1.496"	Cast Iron	Vernier	142-225	8653A12	000000	8653A14	000000

Outside Micrometers for Gears

Measure gears so they fit perfectly in your system. The anvil and spindle have flat discs that fit between tight gear teeth, where most micrometers can't reach.

To find your exact measurements, read the scales on the sleeve and thimble. You don't have to replace any batteries, so these micrometers are always ready for the job.

With Analog Display—Watch the display update as the spindle moves for easy-to-read, trustworthy measurements.

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







				With Analog Display

				0" to 1"	±0.0002"	0.001"	Ratchet Stop	1"	Cast Iron	223-125	8655A11	0000000	8655A12	0000000

Starrett Depth Micrometers

Measure the depth of holes, slots, shoulders, and projections by changing out the steel extension rods supplied in 1" incremental lengths. The thimble has a constant-force mechanism, so that once the spindle contacts the surface of the measured object, it will stop tightening. This ensures repeatable measurements and prevents over-tightening.

	Micrometers													Replacement Cases
				Base			Extension Rods
	Distance Measured Range	Accuracy	Measuring Increments	Wd.	Lg.	Material	No. of	Lg.	Dia.	Overall Ht.	Mfr. Model No.		Each		Each
Ratchet Thimble



		0" to 3"	±0.0001"	0.001"	2 1/2"	5/8"	Steel	3	1", 2", 3"	1/8"	3 1/2"	440Z-3RL	2051A3	0000000	4268N11	000000


		0" to 3"	±0.0001"	0.001"	4"	39/64"	Steel	3	1", 2", 3"	5/32"	3 1/2"	445BZ-3RL	2051A32	000000	———	0
		0" to 6"	±0.0001"	0.001"	2 1/2"	5/8"	Steel	6	1", 2", 3", 4", 5", 6"	1/8"	3 1/2"	440Z-6RL	2051A4	000000	4268N11	00000
		0" to 6"	±0.0001"	0.001"	4"	39/64"	Steel	6	1", 2", 3", 4", 5", 6"	5/32"	3 1/2"	445BZ-6RL	2051A42	000000	———	0
		0" to 6"	±0.0001"	0.001"	6"	39/64"	Steel	6	1", 2", 3", 4", 5", 6"	5/32"	3 1/2"	445DZ-6RL	2051A43	000000	———	0
		0" to 9"	±0.0001"	0.001"	4"	39/64"	Steel	9	1", 2", 3", 4", 5", 6", 7", 8", 9"	5/32"	3 1/2"	445BZ-9RL	2051A52	000000	———	0
		0 mm to 75 mm	±0.007 mm	0.01 mm	63.5 mm	39/64"	Steel	3	1", 2", 3"	3.2 mm	3 1/2"	440MZ-75RL	2051A61	000000	4268N11	00000
		0 mm to 150 mm	±0.007 mm	0.01 mm	63.5 mm	39/64"	Steel	6	1", 2", 3", 4", 5", 6"	3.2 mm	3 1/2"	440MZ-150RL	2051A62	000000	4268N11	00000

Mitutoyo Depth Micrometers with Calibration Certificate

These micrometers come with a calibration certificate traceable to NIST that states they've passed a test for accuracy. Change out the steel extension rods supplied in 1" incremental lengths to measure the depth of holes, slots, shoulders, and projections. The thimble has a constant-force mechanism, so that once the spindle contacts the surface of the measured object, it will stop tightening. This ensures repeatable measurements and prevents over-tightening.

	Micrometers													Replacement Cases
				Base			Extension Rods
	Distance Measured Range	Accuracy	Measuring Increments	Wd.	Lg.	Material	No. of	Lg.	Dia.	Overall Ht.	Mfr. Model No.		Each		Each
Ratchet Thimble



		0" to 4"	±0.00012"	0.001"	2 1/2"	5/8"	Aluminum	4	1", 2", 3", 4"	5/32"	8"	129-127	20365A18	0000000	4266N11	000000


		0" to 4"	±0.00012"	0.001"	4"	5/8"	Aluminum	4	1", 2", 3", 4"	5/32"	8"	129-131	20365A22	000000	4266N11	00000
		0" to 6"	±0.00012"	0.001"	2 1/2"	5/8"	Aluminum	6	1", 2", 3", 4", 5", 6"	5/32"	10"	129-128	20365A21	000000	———	0
		0" to 6"	±0.00012"	0.001"	4"	5/8"	Aluminum	6	1", 2", 3", 4", 5", 6"	5/32"	10"	129-132	20365A23	000000	———	0
		0" to 12"	±0.00012"	0.001"	4"	5/8"	Aluminum	12	1", 2", 3", 4", 5", 6", 7", 8", 9", 10", 11", 12"	5/32"	16"	129-150	20365A24	000000	———	0

Starrett Depth Micrometers with Calibration Certificate

Image of Product. Front orientation. Depth Micrometers. Starrett.

	Micrometers													Replacement Cases
				Base			Extension Rods
	Distance Measured Range	Accuracy	Measuring Increments	Wd.	Lg.	Material	No. of	Lg.	Dia.	Overall Ht.	Mfr. Model No.		Each		Each
Ratchet Thimble



		0" to 3"	±0.0001"	0.001"	2 1/2"	5/8"	Steel	3	1", 2", 3"	1/8"	3 1/2"	440Z-3RL	2051A88	0000000	4268N11	000000


		0" to 3"	±0.0001"	0.001"	4"	39/64"	Steel	3	1", 2", 3"	5/32"	3 1/2"	445BZ-3RL	2051A26	000000	———	0
		0" to 6"	±0.0001"	0.001"	2 1/2"	5/8"	Steel	6	1", 2", 3", 4", 5", 6"	1/8"	3 1/2"	440Z-6RL	2051A23	000000	4268N11	00000
		0" to 6"	±0.0001"	0.001"	4"	39/64"	Steel	6	1", 2", 3", 4", 5", 6"	5/32"	3 1/2"	445BZ-6RL	2051A27	000000	———	0
		0" to 6"	±0.0001"	0.001"	6"	39/64"	Steel	6	1", 2", 3", 4", 5", 6"	5/32"	3 1/2"	445DZ-6RL	2051A29	000000	———	0
		0" to 9"	±0.0001"	0.001"	4"	39/64"	Steel	9	1", 2", 3", 4", 5", 6", 7", 8", 9"	5/32"	3 1/2"	445BZ-9RL	2051A28	000000	———	0
		0 mm to 75 mm	±0.007 mm	0.01 mm	63.5 mm	39/64"	Steel	3	1", 2", 3"	3.2 mm	3 1/2"	440MZ-75RL	2051A22	000000	4268N11	00000
		0 mm to 150 mm	±0.007 mm	0.01 mm	63.5 mm	39/64"	Steel	6	1", 2", 3", 4", 5", 6"	3.2 mm	3 1/2"	440MZ-150RL	2051A21	000000	4268N11	00000

Starrett Depth Gauges

Reach deep into small holes and slots for precise depth measurements. This gauge has a rod to measures the depth of recesses where the blade won’t fit. The blade has a hook which grabs the edge of an object for easy alignment. Markings are etched for wear resistance.

				Graduation Marks (Numeric Increments)		Measuring Blade					Base
	Lg.	Angle Measured	Distance Measured	Front Right	Back Right	Tip Wd.	Wd.	Includes	Wd.	Material	Wd.	Lg.	Color	Graduation Color	Overall Ht.	Features	Mfr.	Mfr. Model No.		Each
Bottom-to-Top/Top-to-Bottom Reading Direction



		6"	30°, 45°, 60°	0" to 4 1/2"	1/64" (1")	1/32" (1")	0.47"	0.19"	6" Lg. × 5/64" Dia. Steel Rod	3/16"	Steel	2 5/8"	1 9/16"	Silver	Black	6"	Protractor	Starrett	236HB	2090A2	0000000

Economy Depth Gauges


Gauge	Gauge with Rod

Take precise depth measurements in small holes and slots. These gauges have a blade with wear-resistant etched markings.

Rod measures recesses where the ruler blade won’t fit.

				Graduation Marks (Numeric Increments)						Base
	Lg.	Angle Measured	Distance Measured	Front Right	Back Right	Measuring Blade Tip Wd.	Includes	Wd.	Material	Wd.	Lg.	Color	Graduation Color	Overall Ht.	Features		Each
Bottom-to-Top Reading Direction



		6"	30°, 45°, 60°	0" to 5 1/4"	1/64" (4/32")	1/32" (8/64")	0.22"	—	1/4"	Steel	2 1/2"	1 1/2"	Silver	Black	6"	Protractor	20445A41	000000


		6"	30°, 45°, 60°	0" to 5 1/4"	1/64" (4/32")	1/32" (8/64")	0.22"	6" Lg. × 3/32" Dia. Steel Rod	7/32"	Steel	2 1/2"	1 1/2"	Silver	Black	6"	Protractor	20445A46	00000

Mitutoyo Vernier Depth Gauges


Gauge	Gauge with Hook End

These gauges have two scales for fine adjusting—a main scale and a sliding vernier scale. The vernier scale takes the space between graduation marks on the main scale and divides them into smaller increments for an accurate depth reading. Use the adjustment screw on the vernier scale for fine tuning. Designed for durability, these analog gauges are good for measuring the depth of small holes and slots in machine shops where they’ll get frequent use. They are often used to set the cutting depth for milling tools and counterbores.

Hook End—Gauges with a hook end can measure the depth of lips, grooves, and other projected or recessed features that a gauge with a straight end could not access.

				Measuring Blade				Base
	Distance Measured	Accuracy	Graduation Marks (Numeric Increments)	Tip Wd.	Wd.	Includes	Material	Wd.	Lg.	Color	Graduation Color	Overall Ht.	Features	Mfr.	Mfr. Model No.		Each
Bottom-to-Top Reading Direction



		0" to 6"	±0.001"	1/50" (1/10")	0.16"	—	Vernier Scale	Stainless Steel	3 15/16"	3/4"	Silver	Black	10 1/4"	—	Mitutoyo	527-111	6673N11	0000000


		0" to 8"	±0.001"	1/50" (1/10")	0.16"	—	Vernier Scale	Stainless Steel	3 15/16"	3/4"	Silver	Black	12 1/4"	—	Mitutoyo	527-112	6673N12	000000
		0" to 12"	±0.0015"	1/50" (1/10")	0.16"	—	Vernier Scale	Stainless Steel	3 15/16"	3/4"	Silver	Black	16 1/8"	—	Mitutoyo	527-113	6673N13	000000
		0 mm to 150 mm	±0.03 mm	1 mm (10 mm)	0.37"	0.82"	Vernier Scale	Stainless Steel	3 15/16"	3/4"	Silver	Black	10 1/4"	Hook End	Mitutoyo	527-411	6673N14	000000
		0 mm to 200 mm	±0.03 mm	1 mm (10 mm)	0.37"	0.82"	Vernier Scale	Stainless Steel	3 15/16"	3/4"	Silver	Black	12 1/4"	Hook End	Mitutoyo	527-412	6673N15	000000
		0 mm to 300 mm	±0.04 mm	1 mm (10 mm)	0.37"	0.82"	Vernier Scale	Stainless Steel	3 15/16"	3/4"	Silver	Black	16 1/8"	Hook End	Mitutoyo	527-413	6673N16	000000