5 Reasons to Choose a Mitutoyo Digital Micrometer!
Mitutoyo Digital Micrometers have a deserved reputation for quality, accuracy, and reliability within the metrology world. If you have experience using hand-held metrology equipment, then no doubt you will either have experience using Mitutoyo measuring instruments or will at the very least be familiar with the name.
Here, we take a closer look at Mitutoyo, briefly describing the history and philosophy of the company before specifically discussing how their approach has led to them producing a range of market-leading digital micrometers with unique functions and features.
Who are Mitutoyo?
Established in Japan in 1934 by company founder Mr Yehan Numata, Mitutoyo has grown into an international company, with the UK arm of the business opening in 1980.
Mitutoyo, roughly translates to ‘abundance of three elements’, for Mr Yehan Numata the three elements related to character and attitude and stood for: prudence, bonhomie and strength.
These three characteristics created the basis for the attitude and ethics of the business, enabling its successful global expansion. The characteristics still run through the company philosophy today.
Read more about the Mitutoyo name and philosophy here.
5 Reasons to choose a Mitutoyo Digital Micrometer
- Brand reputation
- Range of micrometer types, functions and features
- High accuracy micrometers
- Choice of ratchet type
- Top models available with and without data output
1. Brand Reputation
We started the article by touching on how Mitutoyo started and grew as a company at the forefront of the metrology industry. They have continued to build their market-leading reputation due to the following.
- Innovation – The world of engineering is constantly changing and progressing with the development of new technologies. Mitutoyo are at the front of the pack leading the change in precision measuring. Their wide range of function packed digital micrometer models are evidence of this, as is the 293-130-10 Digimatic High-Accuracy Micrometer that has a resolution of 0.0001mm!
- Massive product line – Mitutoyo has a wide variety of products that are designed to meet the diverse needs of engineers and manufacturers. This makes their product line huge, having over 5,500 products in total, comprising of micrometers, calipers, dial gauges, shape measuring machines, hardness testers, optical instruments, image measuring machines, coordinate measuring instruments and more.
- Production line – Owning their own production line allows Mitutoyo to closely monitor the quality of their products, ensuring they meet the highest manufacturing standards. It also allows them to develop new technologies that remain unique to the brand.
2. Mitutoyo Micrometer Types
There are many types of specialised micrometers that are designed to measure specific applications (Check out our run-down of the main 11 Types of Micrometers) or access difficult-to-reach features of items. While there are anvil adapters available, a speciality micrometer designed for the purpose is best for the job.
Mitutoyo offers a massive range of types of micrometers. These include:
- Point Micrometer
- Spherical Micrometer
- Blade Micrometer
- Screw Thread Micrometer
- Spline Micrometer
- Crimp Height Micrometer
- Tubing Micrometer
- Uni Micrometer
- Indicating Micrometer
- Digit Micrometer
- Quick Travel Micrometer
- Adjustable Size Micrometer
- Adjustable force Micrometer
- Disc Micrometer
Mitutoyo offer the widest range of micrometers out of all the main metrology manufacturers, offering a model for every micrometer type ever designed!
Below we discuss more detail of the above…
Pointed spindle and anvil for measuring the web thickness of drills, small grooves and other hard-to-reach dimensions.
- Digimatic – Point micrometer
- Series 112 – Point Micrometer
- Series 342 – crimp height micrometers
Available in steel or carbide 15° or 30° points.
Spherical anvil and spherical anvil/spindle micrometers are used to measure the thickness of curved parts such as rod or crank bearings and pipe wall thickness.
Blade micrometers are typically used to measure groove diameters on shafts or other narrow, recessed features. Mitutoyo offer blades in steel or carbide, this is fairly typical. However, they also offer the blades in a variety of thickness, another unique selling point.
Mitutoyo offers four types of blade that are available for each digital micrometer.
- Type A – thickness of: 0.75. length of: 6.5
- Type B – thickness of 0.4. length of: 6.5
- Type C (carbide) – thickness of 0.75. Length of: 11
- Type D (carbide) – thickness of 0.4. Length of: 8
Type C and D have carbide tipped measuring faces. They all offer a maximum vertical misalignment of 0.15mm between the spindle and the anvil.
Screw Thread Micrometer
Have interchangeable anvils, designed to measure the pitch diameter of a thread.
Spline micrometers have a reduced diameter spindle and anvil, this allows the user to measure spline minor diameters, slots and keyways.
Crimp Height Micrometer
Crimp height micrometers are designed to measure the crimp height of electrical connectors after they are crimped on a wire.
Used to measure the wall thickness on tubing, pipe and other hard-to-reach places.
With interchangeable anvils (flat anvil, rod anvil, V-anvil) to suit a range of applications Uni-mics can measure tube thickness, shoulder distances, rivet head height and more.
Are used as a go/no go gauge. The spindle is locked after setting and a button retracts the anvil for easy part insertion. Indicating hands on the dial allows the operator to easily check for go/no go.
Digit micrometers have both an “odometer” style counter and standard thimble graduations. The micrometer may be graduated in imperial and Metric.
Quick Travel Micrometer
Quick travel micrometers allow the spindle to retract or advance at more than ten times the rate of a standard micrometer. This feature allows the micrometer to be used in applications where the spindle must be retracted to clear a feature before being advanced to take the measurement.
Interchangeable Anvil (Adjustable Size) Micrometer
Interchangeable anvil micrometers have an oversized frame and multiple anvils to allow a single micrometer to be used over a wide range of measurements over a 150mm (6”) range, reducing tool cost for infrequently measured ranges.
Disc micrometers are used to measure features along the length of a shaft or gear teeth requiring clearance from the micrometer frame and thimble.
Mitutoyo offer IP rated micrometers across most of their series/models. Even though this is not unique to Mitutoyo, it is still worth mentioning.
IP rating is the ingress protection your device offers. IP rated electrical devices have a number that tells you the amount of protection the device offers. IP54, IP65, and IP67 are commonly found on micrometers, read more about IP ratings here.
3. High Accuracy Micrometers
The MDH high-accuracy sub-micron digimatic micrometer has a resolution of 0.1µm, the highest resolution found in a handheld digital micrometer. Unique to Mitutoyo, this is an incredible level of resolution, and a firm selling point for anyone requiring the accuracy this gauge provides. We’d recommend using a micrometer stand where possible so to ensure this beauty performs to the best of its ability.
4. Mitutoyo Ratchet Types
One reason to choose a Mitutoyo digital micrometer for your application is that they offer three main types of ratchet, with variations of each type. The type and ratchet most suited to you and your application will depend on your experience, preference, and what you’re measuring with the digital micrometer.
Mitutoyo ratchets all use ‘consistent-force technology’ described by Mitutoyo as constant-force. Having consistent force improves accuracy when measuring by helping reduce deviations in-between operators (reproducibility). In addition, a ‘speeder’ is present on ratchet stop and most ratchet thimble micrometers, which make it easier and faster to open and close the spindle.
- Ratchet Stop – The ratchet stop is both the ratchet and the speeder. The ratchet on these models of digital micrometer offers a consistent force when winding the thimble. Upon contact, you will hear a noticeable clicking sound, which will help guide the amount of pressure that needs to be applied.
- Friction thimbles – Friction thimbles are generally available on digital micrometers with a range between 0-50mm (0-2″). They are not often found on mics over 50mm (2”). The friction thimble can be used with one hand, mainly because the thimble is positioned close to the operator’s hand. These do not have audible feedback like the ratchet stop or have a speeder.
- Ratchet Thimble – A ratchet thimble is a cross between the ratchet stop and friction thimble. It is easy to reach like a friction thimble and also provides an audible clicking sound completing the three-dimensional sensory feedback. The ratchet thimble can also incorporate a speeder.
5. Data Output
Another unique quality of Mitutoyo is that their most popular digital micrometers are available with both non-data output and data output.
Offering models with or without data output means those who don’t want data output don’t have to pay for an expensive function they don’t need.
In this article, we’ve gone over some of the fundamentals that make Mitutoyo stand out in the precision measuring industry.
To summarize the reasons why you should consider a Mitutoyo digital micrometer, or indeed any of their measuring instruments is knowing they will offer a micrometer suitable for your application in their extensive product range. And, that the quality of their instruments is unquestionable, offering accuracy and consistency that you can trust.
If you have any questions about Mitutoyo micrometers, Please get in touch: 0114 327 1616.
Browse our full range of Mitutoyo Digital Micrometers here
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