12 best metric micrometers

Metric micrometers, specifically outside micrometers, are precision measuring instruments used for dimensional measurement in various industries and applications related to test, measure, and inspect processes. These instruments are essential for obtaining accurate measurements of objects with high precision. Here's what you should know about metric micrometers:

Principle of Operation: Metric micrometers operate on a simple principle. They consist of a C-shaped frame with a spindle and an anvil. When the spindle is turned, it moves toward or away from the fixed anvil, allowing for precise measurement of the distance between the two surfaces.
Metric Measurement: Metric micrometers are designed to measure dimensions in the metric system, which includes units like millimeters (mm) and micrometers (µm). This makes them suitable for applications where metric units are preferred or required.
Precision and Accuracy: Metric micrometers are known for their high precision and accuracy.They can typically measure to within micrometers (µm) or even fractions of a micrometer, making them essential for industries where tight tolerances are critical.
Spindle Lock: Many metric micrometers are equipped with a spindle lock mechanism. This feature allows the user to lock the spindle in place after taking a measurement, ensuring that the reading is not accidentally changed during handling.
Thimble and Sleeve: The thimble is the rotating part of the micrometer that is turned to make measurements. The sleeve contains the linear scale with markings, and as the thimble is rotated, it moves along the scale, providing the measurement reading.
Digital vs. Vernier: There are two main types of metric micrometers: digital and vernier. Digital micrometers have an electronic display that provides a direct digital readout of the measurement. Vernier micrometers have a graduated scale and require the user to visually interpret the measurement by aligning scale markings.
Zero Setting: Metric micrometers should be zeroed or calibrated before each use to ensure accurate measurements. This involves ensuring that the micrometer reads zero when the spindle and anvil are in contact.
Applications: Metric micrometers are used in a wide range of industries, including manufacturing, machining, quality control, and research. They are suitable for measuring the dimensions of objects like metal parts, plastic components, machined parts, and more.
Calibration: Regular calibration of metric micrometers is essential to maintain their accuracy. Calibration involves comparing the micrometer's measurements to a standard of known dimensions and making any necessary adjustments.
Care and Maintenance: Proper care is required to keep metric micrometers in good working condition. They should be stored in protective cases, kept clean and free of contaminants, and handled with care to prevent damage to the delicate measuring surfaces.
Accessories: Some metric micrometers come with additional accessories, such as extension rods for measuring deep recesses, interchangeable anvils for measuring special shapes, and calibration standards.

In summary, metric micrometers, especially outside micrometers, are precise and accurate measurement tools used in various industrial and scientific applications. Their ability to provide highly accurate measurements in the metric system makes them invaluable for ensuring the quality and precision of manufactured components and products.

Below you can find our editor's choice of the best metric micrometers on the market

Digital Micrometer, Professional Inch/Metric Thickness Measuring Tools 0.00005"/0.001 mm Resolution Thickness Gauge, Protective Case with Extra Battery

Dicfeos

Based on 455 reviews Check latest price

Product description

REXBETI outside micrometer is a professional measuring tool. With accurate to 0.0001", You can get the most presicion measurements from the large clear LCD display. Comes with a hard and tough case for storage and protection.

Features:

● Range 0-1"/0-25mm

● Accuracy +/- 0.0001"

● Resolution 0.00005"/0.001mm

● Metric/Inch Conversion

● Absolute Modes

What in package

1* REXBETI Digital Micrometer

1* Storage case

1* User Manual

1* Extra CR1632 battery

0-1" (0 to 25mm) digital micrometer with 0.001" (0.001mm) resolution and +/- 0.0001" accuracy
2 measuring modes : Inch / Metric
Large LCD display
Ratchet stop for using flexible
Hard protective case for protection

User questions & answers

Question:	Does it have an auto shut off feature
Answer:	0.0001"
Question:	Does it have carbide tips
Answer:	I think they will contact you when they receive your message
Question:	What is the smallest gauge this measures? I work in plastics manufacturing and need to measure the gauge of plastic sheeting as small as about
Answer:	Before this new digital caliper, I have a mitutoyo caliper, i think the quality is the same with mitutoyo, but it is much cheaper.
Question:	I'm a store buyer, how can I get in touch with the seller
Answer:	The caliper weighs about 6.5 OZ. The 12.5 would have to be the shipping weight.

OMGAI 0-25mm Standard Outside Metric Micrometer Set Tool for Mechanist Brown

OMGAI

Based on 187 reviews Check latest price

Product description

Specification:

Color: Brown/Seagreen

Material: Metal

Range: 0-25mm

Graduation: 0.01mm

Overall Size: 126x53x18mm/4.9"x2.1"x0.7" (L*W*T)

Holder Size: 140x55x25mm/5.5"x2.16"x1.2" (L*W*T)

Net Weight: 193g

Package Content: 1xMetric Outside Micrometer 1xHolder

★ This thread gauge measures the outside thickness or the diameter of small parts.
★ Range: 0-25mm, Graduation: 0.01mm.
★ Strong steel frame, corrosion-resistant finish, solid protective case.
★ Ideal for Mechanist, technician, engineers and scientists to make accurate and precise measurement.
★ A perfect teaching tool for teacher.

User questions & answers

Question:	Does it have a ratcheting barrel to control pressure
Answer:	Mine also came with 2 blank spaces. Maybe for extra if u buy them
Question:	What's the anvil diameter
Answer:	No it will not measure a shot gun barrel bore. It is to large an instrument with a min bore of 35mm. Best to use a dial caliper.
Question:	Does it measure in thousandths of inches or just metric MM's and i have to convert it
Answer:	Yes, the 52-646-500 is .0001". I bought this gauge for that very reason. It is very touchy. Note the maximum measurement is only .050"If you would like pictures I can send you some of my gauge, just send me your email
Question:	What is the accuracy
Answer:	Michael, Mine came with the 1.4 Anvil installed in the Measuring Head so the slot in the case was open. There are two slots in the case for 2.0, one is on the very left and the other is on the very right. Mine came with the 2.0 in the slot on the very left leaving the slot on the very right open. Check both slots, if no 2.0 in either, then you are missing it. Mine came with the 2.2 in the slot second in from the right. It looks like you are missing the 2.2. Maybe this Web Page will help you out. http://www.fowlerprecision.com/Welcome/?search=Fowler+XTender+1.4%25u201D+to+6%25u201D+Dial+Bore+Gage+Set+52-646-400-0

Mitutoyo 293-340-30 Digital Micrometer, Inch/Metric, Ratchet Thimble, 0-1" (0-25mm) Range, 0.00005" (0.001mm) Resolution, +/-0.00005" Accuracy, Meets IP65 Specifications

Mitutoyo

Based on 346 reviews Check latest price

Product description

IP65 Waterproof rated. Auto On/Off. Ratchet stop. Carbide measuring faces. Supplied in fitted plastic case., Lot of 1

Calibrated micrometer measures 0 to 1" (0 to 25mm) with 0.00005" (0.001mm) resolution and +/- 0.00005" accuracy, for taking outside diameter measurements in harsh workshop conditions
LCD screen displays in inches and metric units
Plastic components are oil-resistant and measuring faces are carbide-tipped for durability
Ratchet stop to help provide uniform pressure for precise, repeatable measurements
Ingress Protection certified IP65 for protection against dust and water

User questions & answers

Question:	dose this micrometer also have a vernier scale on the barrel
Answer:	The thickness of paper is 0.004 +/- and this micrometer accurate to 0.0005 with no problem.
Question:	Are there any accessories we can buy to add on this model to measure the inside diameter of our item
Answer:	This item does not come with a standard. It comes with the micrometer, battery, plastic case and sleeve.
Question:	Can you use this to measure the thickness of paper
Answer:	It's easy to connect and you don't need to cut into the insulator, but the problem I had with the tool is: the signal is so sensitive that I wasn't able to tell if the wire was cut, because all the wires I was testing were in a harness
Question:	Is it supposed to come with the standard bar
Answer:	i was using it very successfully at over 70 feet. The lines I was tracing were up and over in a building. So i really do not know the exact distance. but it worked great

Product features

Mitutoyo 293-340-30 Digital Micrometer, Inch/Metric, Ratchet Thimble

Coolant Proof Micrometers MDC-MX Series. Twice as Long Battery Life as before and Drastic Improvement in Measurement Efficiency

IP65 protection level, enabling use in environments exposed to cutting oil, etc*. *Anti-corrosion treatment is required after use.
Measurement data output function is available with a water-resistant connection cable.
Auto power ON/OFF function. (50mm/2” or less range models)
With a standard bar except for 0-25mm/0-1" model.
Supplied in fitted case. Plastic case up to 150mm/6", Wooden box over 150mm/6"

Proster 4pcs 0-100mm Metric External Outside Micrometers Measuring Premium Outside Micrometer Set with Case

Proster Trading Limited

Based on 2 reviews Check latest price

Product description

Feature:

1.Measures in increments of 0.01mm

2.Satin Chrome Finish

3.Heat Insulated Grip Plates

4.Standards TEST Pieces Included

5.Carbide Tipped Anvils

6.Expansion Grips

7.Spindle Locks

8.Fine Spindle Ratchets

Specification:

Dividing value: 0.01

Range: 0-25mm,25-50mm,50-75mm,75-100mm

Resolution: 0.01mm

Package included(4 Micrometer Sizes):

0mm-25mm

25mm-50mm

50mm-75mm

75mm-100mm

One zero wrench

Sturdy Protective Case

This 4pcs External Micrometer Set consist of 4 most popular professional outside micrometers (0mm-25mm, 25mm-50mm, 50mm-75mm, 75mm-100mm).
Housed in a ABS plastic case with foam insert these micrometers range from 0mm to 100mm , increments of 0.01mm, which covers thousands of machining and engineering tasks.
Precision ground anvils and superbly manufactured spindles will ensure these will be accurate and precise and prove to be an asset in any workshop.
Other features include spindle ratchets and fine knurling on the main and ratchet thumbwheels, easy to read graduations and gauge blocks for calibration of the three larger sizes.
Standards TEST Pieces Included, Expansion Grips, Sturdy Protective Case

Accusize Industrial Tools 0-150 mm Precision M-Type Metric Outside Micrometer 6 Pc Set, Eg00-9150

Based on 101 reviews Check latest price

Includes 6 Micrometers with measuring ranges: 0 – 25, 25-50, 50-75, 75-100, 100-125, 125-150 mm
Crisp, clear, easy-to-read graduation, accurate to 0.01 mm; Hardened and ground spindle with carbide anvil ensure durability and accuracy
Super Hard Carbide Tipped; Complete with calibration standards and wrenches
Ratchet handle for precise application of force; Lock nut; Mitutoyo style Frame - Solid Casting frame
Powder coated baked finish; Fitted wood padded case included; Vernier Graduations: 0.01 mm; Includes adjustment wrench and calibration standards

User questions & answers

Question:	Can these come cert like nist traceable etc
Answer:	no it can not. just not that type of tool. this tool is used to check ..... equality in a cylinder

Product features

Length Measurement

This micrometer set is produced in a state-of-the-art ISO 9001 certified factory filled with CNC machines like Haas CNC milling centers, Brother CNC milling centers, Haas CNC turning centers just name a few on 50,000 sq. ft. CNC shop floors. Each of the micrometers is checked at 10 data points for maximum error tolerance with high precision gauge blocks and conducted inspection on parallelism and flatness by optical flat in a strict temperature controlled environment. The critical benchmark inspection media are inspected periodically on famous calibration machines, e.g.: Switzerland’s TRIMOS Universal Gage Calibration System, model ABC-P500, and Germany Carl Zeiss Jena Product 0-3000 mm Measuring system for oversized length calibration.

iGaging 0-4" Digital Electronic Outside Micrometer Set 0-1", 1-2", 2-3", 3-4" Large LCD

iGaging

Based on 401 reviews Check latest price

Product description

Professional Tool, High Precision

Crisp, clear, easy-to-read LCD display, accurate to 0.00016". Hardened and ground spindle with carbide anvil ensure durability and accuracy. Comes in a case with adjustment wrench, instructions booklet, ball attachment and extra battery.

Features:

BONUS: Ball attachment
2 measuring modes Metric/Standard
Large LCD Display
Absolute & Incremental Modes
Automatic Switch Off
Accuracy +/- 0.00016"
Range 0-1"/0-25mm, 1-2"/25-50mm, 2-3"/50-75mm, 3-4"/75-100mm
Resolution 0.00005"/0.001mm
Carbide Measuring Surfaces
Direct USB SPC Output available
Meet or Exceeds Federal Accuracy Standards

Range: 0-3" (Calibration standard included)
2 measuring modes Metric/Standard (Inch)
Large LCD Display
Absolute & Incremental Modes
Accuracy +/- 0.00016"

User questions & answers

Question:	Is this tool good for engine rebuilding? Such as checking crankshaft journals etc? Would you use the ball for measuring rounded parts like the crank
Answer:	No this is just a bore gauge not a run out gauge this just checks hole size basically.
Question:	Would tool be suitable to measure the thickness of plastic film? The plastic is approximately5.5 millimeters thick
Answer:	No, we don't. Sorry.
Question:	What is the diameter of the shaft? I want to use this for measuring valve shims, they' sit on top of the valve stim
Answer:	Hi, the product is good although it doesn't have the brand on it. Please let me simply explain it. We have many distributors across North America. And a lot of them require us not to put our brand on anywhere of the products so that they can print or engrave their brands on the products and sell it under the name of their company or their brands. The product has the same quality of the products as that of Accusze branding. Anyway, you may return it if you don't have faith in it. Thanks for your understanding.
Question:	What is the purpose of the ball? Why would you use it or not
Answer:	Yes you can as long as your cylinder bore diameter is within the size range. Accuracy is .0005” There are many videos on the internet that describe the methods for checking your bore diameters and out of round. You will also need a good caliper for measurement. If you’re still uncertain, check with a machine shop.

Fowler Full Warranty 52-229-220-0 Outside Metric Micrometer Set, 0-100mm Measuring Range, 0.01mm Graduation

Fowler

Based on 11 reviews Check latest price

Product description

The Fowler 52-229-220-0 is a four piece micrometer set with a range of 0-100mm. Four micrometers each with a range of 25mm graduated in 0.01mm. A hardened and lapped spindle ensures high accuracy throughout the travel. Each has a ratchet thimble, insulated frame, positive locking lever and carbide tipped measuring faces. All complete in a shop hardened storage case with adjustment wrench. Ratchet thimble ensures repeatable, accurate readings with any user. This product has a 1 year warranty offered by Fowler High Precision. If you experience any problem contact Fowler directly for warranty claims. Fowler, an American company, manufactures inspection and measurement instruments such as electronic indicators, calipers, bore gages and digital scales. The company founded in 1946, is headquartered in Newton, MA.

From the Manufacturer

Fowler micrometers are of the finest quality available. Special care in design and workmanship create a long lasting precision tool. This particular micrometer set includes 4, each have insulated frames and the friction/ratchet style thimbles. It assures you of consistent readings at all times. These are included in a fitted case and sizes over 25mm include standards. Also includes wrench for easy adjusting.

User questions & answers

Question:	hi, this item come with certificate
Answer:	No. You need the guide. There should be a smaller one in the box that might assist you

4Pcs 0-4" 0-100mm 0.01mm Outdoor Micrometer Set Precision Carbide

findmall

Based on 5 reviews Check latest price

Product description

This 4 Piece 0-100mm Metric External Analogue Micrometer Set consist of our four most popular professional quality external (outside) micrometers.Housed in a sturdy wooden case with foam insert these micrometers range from 0mm to 100mm which covers thousands of machining and engineering tasks.Precision ground anvils and superbly manufactured spindles will ensure these will be accurate and precise and prove to be an asset in any workshop.Other features include spindle ratchets and fine knurling on the main and ratchet thumbwheels, spindle locks, easy to read graduations and gauge blocks for calibration of the three larger sizes.

Feature:

Specification:

Material: Hard Carbide
Box Size: approx 37x34x4cm
Range: 0-100mm
Accurate: 0.01mm (0.00039")
Four Micrometer Sizes

0mm-25mm

25mm-50mm

50mm-75mm

75mm-100mm
Three Sizes of Gauge Blocks

25mm

50mm

75mm

Package Included:

1 X Metric External Analogue Micrometer Set
2 X Service Spanners
1 X Sturdy Protective Wooden Case

Accuracy: 0.004mm for 0-25mm and 25-50mm sizes, 0.005mm for 50-75mm and 75-100mm
Measures in increments of 0.01mm
Included:1XMetric External Analogue Micrometer Set 2XService Spanners 1XSturdy Protective Wooden Case
Measuring faces are carbide tipped
Friction/ratchet style thimbles

Mitutoyo 103-129 Outside Micrometer, Baked-enamel Finish, Ratchet Stop, 0-25mm Range, 0.001mm Graduation, +/-0.002mm Accuracy

Mitutoyo

Based on 141 reviews Check latest price

Product description

Vernier scale in metric units for taking precise outside diameter (OD) measurements
Ratchet-stop mechanism helps provide uniform pressure for precise, repeatable measurements
Baked enamel finish for protection and durability of frame
Satin chrome finish on thimble and sleeve helps resist rust and reduce glare
Carbide facing on spindle and anvil provides wear resistance

User questions & answers

Question:	Is there an advantage of this 103-129 versus the Mitutoyo 102-707? Both have the same specs. but this one has a different shape and is less expensive
Answer:	the little barrel on the end of the larger is ratcheting on mine. Works fine. My only complaint it it's hard to read, it has little tiny tick marks you have see if it is on a half mm or a whole tick . Larger scale that rotates goes up to .5 mm so you have to add that to a half tick or whole. So if for example it is past a half tick and the scale says .31 then it is .81.
Question:	Can you confirm that the rotating thimble, or any other major component is made of plastic on this model as noted by one reviewer? Thanks
Answer:	.250
Question:	Where are these manufactured? Are they made in China
Answer:	It can just measure 0-25mm and needed to be converted.
Question:	Can someone confirm if the thimble is plastic? It’s not stated in description. Sorry if duplicate
Answer:	Dear customer, the accuracy of the micrometer set tool is 0.01mm, thank you.

Beslands Digital Electronic Display Micrometer 0-1" / 0-25mm Gauge 0.00004" / 0.001mm Thickness Measuring Tools Inch/Metric Caliper, Protective Case (with Extra Battery)

Beslands

Based on 136 reviews Check latest price

Product description

1. Large LCD display, clear screen

2. Carbide probe, durable

3. It can measure both relative and relative measurements.

4. Automatic turn off in 5 minutes

5. Operating temperature: 0-40 ° C, humidity in operation: ≤ 80%

6. Battery: Lithium battery CR2032 (obtained) lasts more than 2000 hours

Instructions:

1. ON \ OFF ... SET: ONOFF and set button. Press the button briefly, switch the device on and off, press this button for a long time and set the zero to "0.25,50,75". "Hold down the button to alternately display several zero values Key when one of the zero values is displayed The zero value is the currently displayed value.

2. ZERO: Zero button. Press the button. The data will be used as default starting value (0.25,50,75).

3. ABS ... in / mm: Relative and absolute scale conversion key, metric and inch conversion key. Press this button briefly to perform the absolute measurement and the relative dimension conversion "In" and small font "5", it will be displayed in inches.

Delivery

1 x Digital Electronic Micrometer (with a CR2032 battery)

1 x Additional CR2032 battery

1 x user manual

Note:

Please note the sharp edge to avoid a wound.

Measuring range: Large measuring range at 0-25 mm (1 ") and the resolution is 0.001 mm (0.00005").
Spindle diameter 6.5 mm, hardened stainless steel lockers
LCD Screen: LCD with electronic digital display, easy to read.
3V button Battery: CR2032 lithium battery, high capacity, durable and safe
mm / inch conversion / zero position at each position / incremental or absolute measurements

User questions & answers

Question:	Can this be set to absolute zero? in the product details it states: "2. zero: zero button. press the button. ...default starting value
Answer:	no - not that I know of
Question:	is it from Chinese
Answer:	It measures lengths from 0 to 25mm to the nearest 0.001mm. I.e., to the nearest micron. So the answer to your question is: YES. This is so since the entire interval from 16microns to 40microns falls well within the device's 0mm to 25mm measuring range, and the read out is in thousandths of a millimeter.
Question:	Does it have a clutch on the ratchet to disengage the spindle when it senses the object being measured
Answer:	No it measure 4-5 inches you will have to but a mic that 3-4 inches
Question:	Can it be used to measure plastic bags from 16 micros to 40 micros
Answer:	The markings are laser etched (engraved). They are permanent.

VINCA DCLA-0605 Electronic Digital Vernier Micrometer Caliper Measuring Tool Stainless Steel Large LCD Screen 0-6 Inch/150mm, Inch/Metric/Fractions, Red/Black

Based on 5 reviews Check latest price

Higher quality lower price stainless steel digital caliper with inch/metric/fraction conversion; Home DIY and professional use are both highly recommended
Fine polished stainless steel and NEW processing of depthometer's groove give better looking, smooth sliding, and accurate result
Measure Range: 0-6 inches/150mm; Display: 1/2"x1 1/2" (13mm x 38mm) extra large screen; Accuracy: ±0.001"/0.03mm; Resolution: 0.0005"/0.01mm, 1/128"
Each digital caliper has been fully calibrated before ready to sell (NO calibration certificate included in this model. Please purchase DCLA-0605C for NIST cert)
Featured RS232 Data transfer port, must connect with "VINCA DTCR-03" Cable (sold separately, not included) to make data transfer to PC. DO NOT CONNECT WITH REGULAR USB CABLE. Patent in the US; Comes with one extra battery

SHAHE Outside Micrometer Metric & Inch Digital Electronic Outside Micrometer 0-25mm Measuring Range 0.00005" /0.001 mm Resolution,Come with Protective Case with Extra Battery

Wenzhou Sanhe Measuring Instrument Co.,LTD

Check latest price

【Measuring Range】Range: 0-25mm ; Resolution: 0.001mm (0. 00005"); Accuracy: ±0. 003mm.
【TWO UNITS】Two Kinds of Measurement Units Optional: Metric or Inch, More Convenient for Daily Use.
【Product Specifications】Automatic power off in 5 minutes, Automatic off function helps preserve battery life.
【User-friendly Details】Large Easy-to-read LCD Display; No more frustration from imprecise measurements, or difficulty reading the lines.
【Fix Measurement Size】 This Digital Micrometer adopts with locking device designed to fix the measurement size and prevent clearance adjustment due to error surfaces.