Fit’s comfortably in one hand, accurately measures the thickness of a hair on a gnat’s back and looks so good you find yourself casually posing James Bond style with it on your staff headshot? Yep, that should cover the basics. We may get a little more technical later, but this is the 9 Best Digital Micrometers of 2021, so let’s get testing!

We put 9 of the Best Digital Micrometers through their paces in the testing workshop of our Sheffield distribution centre. Before we dive into the results of our stringent tests, let’s take a quick look at the features you need to consider when choosing a digital micometer.

What to Look for in a Digital Micrometer?

When choosing a digital micrometer, there are certain features to consider to ensure your choice fits your needs. Time spent doing your research here is well spent, as choosing a model without the best functions for your use could affect the accuracy of your readings. Below, we explain the typical features you would need to consider. However, if you require expert advice, then you can contact us on 0114 327 1616.

Micrometer Type

Digital micrometers come in different shapes and sizes with features designed for specific uses. Knowing which micrometer type you need ensures you’re using the best instrument for your application. There are 11 main micrometer types, which you can read about here.

Range

When choosing the range you need, you’ll need to have a rough idea of the size of the item you’re measuring. If the item doesn’t fit inside the spindle and anvil of the micrometer, you won’t be able to measure it – obvious, really! 

Here, we tested the best digital micrometers with a range of 0-25mm (although you’ll notice two of the models have a 0-30mm range), the most commonly used size. However, micrometers with measuring ranges as small as 0-10mm, and as big as 900-1000mm are widely available.

Resolution

The resolution is the smallest unit or change in size that the micrometer is capable of registering. Most commonly, this is 0.001mm on current models, which is sufficient for most applications. However, if you’re looking for a high accuracy digital micrometer, keep an eye out below for the entry with a resolution of 0.0001mm!

Accuracy

Accuracy details the margin of error the instrument will measure within. Shown in the specifications as a ± symbol, the reading given by the digital micrometer may be above or below the true measurement of the item within the stated accuracy margin. On digital micrometers, this margin is typically ±0.003mm. However, this will vary depending on the specifications of each model.

Repeatability

Repeatability is the deviation expected when an object is repeatedly measured under the same conditions by the same person using the same measuring method. If any of these measuring factors change, the deviations in measurement would be classed as reproducibility, how well the instrument reproduces a measurement under different conditions.  

IP Rating

The IP rating states the level of protection the instrument has against exposure to dust and liquid. Essential to know when considering if the durability of the micrometer is suitable for your working environment. Read more on the specifics of IP rating in our article: What are IP Ratings? 

See the article here…

Functions

Different brands and types of micrometer feature a variety of functions. Data output and the ability to measure incrementally are function examples that can improve your workflow when measuring. Researching a selection of micrometers before purchasing one (reading this guide is a pretty good start!) will allow you to know if the functions of each model are suited to the intended use and budget. 

The Test

Using a set of calibrated gauge blocks, we tested the accuracy and repeatability (listed as accuracy) of each digital micrometer. We also considered the merits of the instruments durability, price point, functions, feel, and aesthetics. So, without further ado, let’s get into the results of our best digital micrometer test!

9. Tesa 06030020 Micromaster Digital Micrometer

Tesa 06030020 Micromaster Digital Micrometer

Overview

‘Back once again for the renegade micromaster, D4 damager, power to the people!’ Fat Boy Slim tune, late 90s. Anyone? Anyone?! No? Just me then! Anyway, back to the business in hand. Tesa, the Swiss precision master’s bring their typical level of excellence in at number 9 with the Micromaster Micrometer. It’s a good bit of kit, with a 0-30mm range and a smooth action through an excellent ratchet. It also has good functions with floating zero and a display lock for clumsy fingers, but you have to pay out more for Bluetooth function, and it has a basic IP rating(54). These factors and its big-name price-tag stop it climbing any higher in our best digital micrometers chart.

Features

• Range: 0-30mm (0-1.2″)
• Resolution: 0.001mm (0.00005″)
• Accuracy: ±0.004mm (0.0002″)
• IP54 Sealed
• Protected from water sprays and dust ingress
• Ratchet drive
• Locking screw
• Zero at any point
• mm-inch conversion
• Tungsten Carbide measuring faces
• Hardened stainless steel spindle
• Incremental or absolute measurements
• Power: 3V CR2032 Battery (Included)
• Battery Life: 1-2 years
• Supplied with a Swiss Accreditation Service calibration certificate

Our Take

It’s a solid all-rounder that you can’t really go wrong with, but with a hefty price tag of £316.00 (£268.00 on our site), you’d perhaps expect a little bit more.

Buy the Tesa 06030020 Micromaster Digital Micrometer

7. Mitutoyo 293-831-30 Digital Micrometer

Mitutoyo 293-831-30 Digital Micrometer

Overview

It’s a tie at no.7, and I don’t think it’s giving too much away to say this is Mitutoyo’s first entry in the best digital micrometers list. Their entry-level digital micrometer has a lot going for it, a solid, well-constructed instrument with a nice finish on the metal body and thimble. It’s also got a very smooth action. Although, its lack of IP rating and lack of data output limit its scores in the durability and functions categories.

Features

• Range: 0-25mm (0-1″)
• Resolution: 0.001mm (0.00005″)
• Accuracy: ±0.002mm (0.0001″)
• Flatness: 0.0003mm (0.000012”)
• Parallelism: 0.002mm (0.00008”)
• Carbide measuring faces, micro lap finish
• Thimble and sleeve scale
• Ratchet stop
• Auto Power OFF after 20 min. non use
• Measuring spindle: 18mm diameter

Our Take

A good option at entry-level if you want the insurance in quality that the Mitutoyo name brings.

Buy the Mitutoyo 293-831-30 Digital Micrometer

7. DML DM3025 IP54 Digital Micrometer

DML DM3025 IP54 Digital Micrometer

Overview

9/10 for price..?! £44.99! That means you can buy 7 of these little beauties for the same price as one of the above Tesa Micromasters. If you’re looking for ‘one’ good, ‘best budget’ micrometer, we are proud to offer the DM3025. With absolute & incremental measurements and an IP54 rating, it’s a good option for many applications and working environments. It is a little more plasticky and not quite as smooth as some of the more expensive digital micrometers, but there’s not much else to fault!

Features

• Range: 0-25mm (0-1″)
• Resolution: 0.001mm (0.00005″)
• Accuracy: ±0.002mm (0.0001″)
• Ball anvil attachment
• IP54 Sealed
• Ratchet drive
• Locking screw
• Zero at any point
• mm-inch conversion
• Carbide measuring faces
• Hardened stainless steel spindle
• Incremental or absolute measurements
• Measuring force: 10N

Our Take

Our aim with the DML brand is to offer quality at affordable prices. Balancing the two can be tricky, but we’re patting ourselves on the back for this one!

Buy the DML DM3025 IP54 Digital Micrometer

6. Moore & Wright MW201-01DAB IP54 Digital Micrometer

Moore & Wright MW201-01DAB IP54 Digital Micrometer

Overview

The always reliable Moore & Wright make their mark at no.6 in our list of the best digital micrometers. The MW201-01DAB scores well across all categories. A nicely weighted, solid micrometer, its steel frame provides a robust feel. An IP54 rating offers splash resistance to liquid exposure, and it has a nice and smooth action with a ratchet drive to apply constant force. The vernier scale on the thimble is also a nice touch. It loses ground on the micrometers still to come due to the lack of functions and the ratchet feeling less smooth.

Features

• Range: 0-25mm (0-1″)
• Resolution: 0.001mm (0.00005″)
• Accuracy: 0.003mm (0.00015″)
• Ratchet drive (constant force)
• Analogue scale
• IP54 Sealed: Protected from water, coolant & oil splashes
• Protected from dust ingress
• Auto on/off
• Heat Shield
• Locking screw
• mm / inch conversion
• Zero setting at any point
• Incremental or absolute measurements
• Tungsten carbide measuring faces
• Ball anvil attachment

Our Take

Good spec and quality for a mic that sells for under 100 pounds (£84.00 on our site)! A top contender where a higher IP rating and additional functions aren’t needed.

Buy the Moore & Wright MW201-01DAB IP54 Digital Micrometer

5. Mitutoyo 293-130-10 Digimatic High-Accuracy Micrometer

Mitutoyo 293-130-10 Digimatic High-Accuracy Micrometer

Overview

Mitutoyo are back in the list of best digital micrometers, this time with their high-accuracy digital micrometer. It measures to a tenth of a micron, which is 100 nanometers, or 0.0001mm! However you say it, that’s pretty impressive, and if you need that level of accuracy, and have the money to spend, then look no further. If you don’t, then it may not be the best option. Yes, it also scores well in the feel (it’s smooth as silk!), aesthetics (it looks the business!) and functions categories (hold, error alarm, functions locked and resolution switching, to name a few), but its lack of IP rating and £1570.00(!) price tag sees it stranded bang in the middle of our best digital micrometers run down.

• Range: 0-25mm (0-1″)
• Resolution: 0.0001mm (0.000005″)
• Accuracy: ±0.0005mm (0.00002″)
• Flatness:  0.0003mm (0.000012″)
• Parallelism: 0.0006mm (0.00002″)
• Measuring Surface: 3.2mm Diameter
• Measuring Force: 7-9N
• Electromagnetic induction type BS rotary sensor
• Battery Life: 2.4 Years
• Data output
• Inch-mm conversion
• Hold function
• Auto Power OFF after 20 min non use
• Measuring Spindle: with spindle lock, 6.35mm diameter, spindle pitch 0.635mm

Our Take

Incredible piece of kit, the accuracy is unbelievable, and it is a joy to use due to its construction and feel. If you need it and can afford it, then it has the name and reputation to provide value for money. However, in a ‘all-round’ run-down of the best digital micrometers, it’s hard to justify that price tag (even at our reduced price of £1099.00).

Buy the Mitutoyo 293-130-10 Digimatic High-Accuracy Micrometer

4. Moore & Wright MW203-01DABI Digital Micrometer

Moore & Wright MW203-01DABI Digital Micrometer

Overview

With an impressive score of 8.5 for durability due to its IP65 rating and sturdy construction, the Moore & Wright MW203-01DABI Digital Micrometer also achieves good scores across the board in our best digital micrometers test. Data output and other expected functions on a model of this level mean it’s suitable for most applications, although it doesn’t offer any advanced, niche functions.

• Range: 0-25mm (1″)
• Resolution: 0.001mm  (0.00005”)
• Accuracy: ±0.003mm (0.00015″)
• Standard: DIN 863/1
• Protection: IP65 Rating
• Protected against Coolant, Water & Dust
• 2 Button design
• SPC Data output
• Carbide measuring faces
• mm/inch conversion
• MPN: MW203-01DABI
• Brand: Moore & Wright

Our Take

A ‘no-nonsense’ digital micrometer, which has the functions for most applications. If it has the functions you need, you should consider this one – no wonder it’s pushing towards the top of our best digital micrometers list!

3. DML DM5025 Snap Micrometer

DML DM5025 Snap Micrometer

Overview

We gave ourselves a pat-on-the-back for the DM3025 making no.7 on the list of best digital micrometers, so I think we’ll put the kettle on and put our feet up for five minutes to bask in the glory of a no.3 entry! The DM5025 is solid enough to skydive without a parachute, bounce back up and still give you accurate readings. Its lever-operated, linear action means there are no winding parts to break or move during operation, while the action is milkshake smooth. Wireless data output is available through the addition of the DML2100 data output device. Which is an extra cost of £66.66, however, that still keeps the overall cost under £200.00.

• Range: 0-25mm (0-1″)
• Resolution: 0.001mm (0.00005″)
• Accuracy: ±0.005mm (0.00025″)
• Lever operated
• Non-rotating spindle
• IP65 Sealed: Protection from water, coolant & oil and dust ingress
• Zero at any point
• mm-inch conversion
• Carbide measuring faces
• Hardened stainless steel spindle
• Incremental or absolute measurements
• Measuring force: 10N
• Wireless data output available (DML2100)
• MPN: DM5025
• Brand: DML

Our Take

We’re proud of this one!

1. Sylvac 30-803-0300 S_Mike Pro Digital Micrometer

Sylvac 30-803-0300 S_Mike Pro Digital Micrometer 0-30mm (0-1″)

Sylvac 30-803-0306 IP67 S_Mike Pro Digital Micrometer Bluetooth 0-30mm (0-1.2″)

Overview

They’re at it again. Sylvac, the brand that brushed the competition aside in our Best Digital Calipers list once again finds itself at the top of the pile, all be it, sharing the glory this time around. The Sylvac Mike Pro Digital Micrometer is serious. The feel is unreal, smooth, solid, perfectly balanced. The build quality is exceptional, IP67, metal construction with thick rubber grip protection on the ratchet and thimble. Adjustable measurement force, 0-30mm range, quick action function of 12mm per rotation, big LCD and data output! Did we forget anything!? The only downside is you have to purchase an add-on if you want the excellent Bluetooth function, and at a starting price of over £300.00, it might get pricey.

• Range: 0-30mm (1.2″)
• Resolution: 0.001mm (0.00005″)
• Maximum error: 0.003mm (0.00015″)
• Repeatability: 0.001mm (0.0005″)
• Data output: USB / RS 232 / Digmatic / Wireless
• IP Rating: IP67 water protected for heavy-duty work with coolants and lubricants, according to IEC60529, with or without connector
• mm/inch conversion
• Standards met: DIN863
• Automatic wake-up by moving the measuring spindle
• Sleep mode after 20 min. of no use
• Position memorised in sleep mode
• Quick displacement of the measuring spindle 12mm / rotation
• Adjustable measuring force 5N / 10N
• Battery life 12,000 hours
• Non-rotating spindle
• Preset function

Our Take

If you’re serious about achieving consistently accurate measurements with a piece of kit that will last and serve a wide range of applications, then this one should be right at the top of your ‘maybe’ list.

View the 30-803-0306 Sylvac Micrometer.

1. Mitutoyo 293-185-30 Digimatic QuantuMike Micrometer

Mitutoyo 293-185-30 Digimatic QuantuMike Micrometer

Overview

Their third entry on our 9 best digital micrometers list sees the reputable Japanese company, Mitutoyo, claim 1/3 of our top 9 spots – impressive! And, tying first place, this is the pick of the bunch. An ‘incredibly smooth’ ratchet action lets you know you’re handling a high-end instrument. The high-quality finish on the metal frame shimmers alongside durable plastic elements for overall robust construction. An IP rating of 65 offers sufficient protection for most applications. Although there’s no data output on this model, there is a data output version available (293-180-30). Here, functions such as ‘fast action’, data hold, and absolute, incremental and dedicated measurements see it maintain a high score in the functions category regardless.

• Range: 0-25mm (0-1″)
• Resolution: 0.001mm (0.00005″)
• Accuracy: ±0.001mm (0.00005″)
• Flatness: 0.0003mm (0.000012″)
• Parallelism: 0.001mm (0.00004″)
• IP65 Protected: Waterproof (coolant & dust resistant)
• 2mm travel per thimble rotation
• Carbide measuring faces, micro lap finish
• Ratchet thimble
• Inch-mm conversion
• Thimble and Sleeve scale
• Hold function

Our Take

Fantastic quality once again from Mitutoyo. An excellent digital micrometer that wont cost you an arm or a leg and is suitable for the vast majority of applications. A worthy joint winner in our best digital micrometers test!

Conculsion

When choosing a piece of metrology equipment, budget is always going to play a big part. If you can afford to splash the cash, then Mitutoyo’s high accuracy micrometer really is awesome and will provide peace of mind that your measurements are as good as can be. Their QuantuMike, tied first and is available for under £140 from us, considering the all-round high scores and Mitutoyo build quality, it’s great value for money.

Sylvac’s S_Mike’s price tag might put it out of reach for those on a tight budget but the additional 5mm measuring range, IP67 protection & clever functions mean it comes fully equipped to handle most applications.

In addition, our DM5025 is quite unique, the lever operated micrometer lets the user work with speed while maintaining a good level of accuracy. Its IP65 protection and solid construction mean it can handle heavy use in dirty conditions with ease, and it’s very reasonably priced at £125 might we add!

Moore & Wrights offerings aren’t going to break the bank and as always provide reliability at an affordable price. Their MW203-01DABI micrometer is a nice recent addition to their range and fills a gap in the market for a budget IP65 mic.
Hopefully, this guide has got you thinking, so if you have any unanswered questions or just want some more information on anything we’ve covered, get in touch with us!!

0114 327 1616 sales@digitalmicrometers.co.uk