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The 8 Best inside micrometers of 2025

Are you trying to find inside micrometers among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!

We investigated and evaluated a number of the top-selling inside micrometers on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 24 hours of research and did 28 inside micrometers tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!

An overview of our top picks

Table of contents

The best inside micrometers you can buy today

SaleNo. 1
Mitutoyo 139-201, 1.5" - 12" X .001" Tublar Inside Micrometer
  • Used to measure a wide range of ID measurements
  • 1/2" Travel mic head
  • Size in marked on each extension tube
  • Clear graduations on satin chrome finish mic head
  • Supplied in a fitted plastic case
No. 2
Accusize Industrial Tools 0.2-1.2'' by 0.001'' Inside Micrometer, Satin Chrome Finished, Eg00-3221
  • Range: 0.2 - 1.2''
  • Graduation: 0.001''
  • Accuracy: 0.00028''. Resolution: 0.0001''
  • Satin-chrome finish. Hardened & ground faces
  • Ratchet stop, locking clamp. Easily adjusted for side movement of jaw
  • Precision Measurement Range: Designed for detailed internal measurement with a range of 0.2-1.2'', ideal for a wide variety of precision tasks.
  • High-Resolution and Accuracy: Offers a resolution of 0.001'' and an exceptional accuracy of 0.00028'', ensuring precise and reliable measurements every time.
  • Durable and Reliable Construction: Features a satin chrome finish for enhanced durability and corrosion resistance. Hardened and ground faces ensure long-lasting reliability and wear resistance.
  • Enhanced Usability Features: Equipped with a ratchet stop for consistent measurement force and a locking clamp for secure settings. Jaw easily adjusts for precise side movement, enhancing measurement accuracy.
  • ISO9001 Certified Quality: Manufactured under stringent quality standards to ensure top performance in professional environments.
No. 3
Accusize Industrial Tools 2-24'' by 0.001'' Resolution Inside Micrometer Set, 3011-5051
  • The combining of extension rods provides a wide measuring range. Supplied with a standard caliper gauge for zero setting.
  • Diameter of extension rods: φ15.5mm. Rod Diameter: 0.61"
  • Accuracy: Metric(3+n+L/50)μm, (n=number of rod, L=maximum. Measuring length (mm) [Inch]. Resolution: 0.0001"
  • Each interchangeable rod is marked with its measuring range.
  • Extension Rods: 0.5", 1", 2", 4", 6", 8". Range: 2-24"
  • Expansive measurement capability: Ranges from 2-24" with precise 0.001'' increments, catering to diverse internal measurement needs.
  • Comprehensive set of extension rods: Includes 0.5", 1", 2" (2pcs), 4", 6", 8" rods for versatility in depth and reach.
  • Standardized 0.61" rod diameter: Ensures compatibility with various bore sizes, enhancing the tool's applicability.
  • Rods are individually marked with their ranges: Facilitates efficient selection, reducing downtime and errors in measurement setup.
  • Complete with a caliper gauge for zero setting and housed in a sturdy fitted case for optimal organization and protection.
No. 4
Shars 0.2"-1.2" Precision Inside Micrometer, 0.0001" Resolution 303-2101 P)
  • SKU# 303-2101
  • Measuring Range: 0.2-1.2"
  • Accuracy: 0.0002"; Resolution: 0.001"
  • Product Included: Setting ring; Wrench; Fitted case
  • Satin chrome reading surface finished on barrel and thimble is glare free and resist rust
No. 5
Starrett Solid-Rod Inside Micrometer Set with Case, Insulated Rods, Quick-Reading Figures, Hardened and Ground Anvils - 2-12" Range, .001" Graduations, Padded Case Type - 124BZ
  • Heavy-Duty - The Starrett Solid-Rod Inside Micrometer has insulated rods marked with length, adjustable for length and quick-reading figures.
  • Hardened and Ground Anvils - The micrometer is equipped with hardened and ground anvils, while the measuring rods are solid. It has an excellent service life and outstanding work performance.
  • Meets Strong Demands - Committed in providing customers with consistent and reliable solutions, Starrett has set the standard for precision, quality and innovation. Our products are long-lasting, robust with excellent service and performance.
  • The Perfect Accessory - Used in a wide variety of industries as an essential part of metalworking and woodworking, Starrett tools can be used in various applications and offers unparalleled service with execution like no other.
  • Accurate Measurements - Starrett precision measuring tools exceed accuracy and performance requirements of national and international standards, providing excellent fine precision tools for industrial, professional and consumer markets worldwide.
No. 6
Beslands 6 Pc Telescoping Gage Set, 5/16" - 6" Range, T-Bore Hole Gauges w/Pouch, High Precision Telescopic Bore Gauge T-Gage Set (5/16" to 6")
  • 【Range】5/16" - 6" (8mm to 150mm), Stainless Steel Construction.
  • 【Using】This bore gauge expands in a hole to be measured , locks in place and then removed to determine final hole size using a micrometer or calipers. It is suitable for measuring the inner diameter of holes, such as the inside of cylinders and bores of engines.
  • 【Package】Includes 6 sets, with vinyl case
  • 【Fine Workmanship】The contact point of this machinist tool is hardened tool steel and is fine ground within the final measuring radius
  • 【Smooth and constant spring tension】 The spring is equipped with a knurled locking knob and a knurled fixing area.
SaleNo. 7
Starrett Tubular Inside Micrometer Set with Case, Quick-Reading Figures, Hardened, Interchangeable and Ground Anvils - 1.5-12" Range, .001" Graduations - 823BZ
  • Heavy-Duty - The Starrett Tubular Inside Micrometer has rigid and lightweight rods, and quick reading figures. Extension rods are made of steel tubing and each rod is marked with length.
  • Hardened and Ground Anvils - The tubular comes with hardened and ground anvils. It has an excellent service life and outstanding work performance.
  • Interchangeable Anvils - It is equipped with easily interchangeable anvils for diversified gaging, providing the full range in steps with a micrometer.
  • The Perfect Accessory - Used in a wide variety of industries as an essential part of metalworking and woodworking, Starrett tools can be used in various applications and offers unparalleled service with execution like no other.
  • The Standard for Excellence - Proudly made in the USA, Starrett combines over 140 years of American heritage and innovation with globally sourced materials to deliver exceptional quality tools and products.
No. 8
Mitutoyo 141-001 Vernier Inside Micrometer, Interchangeable Rod Type, 25-32mm Range, 0.01mm Graduation, +/-0.00664mm Accuracy
  • Includes interchangeable rods for a diversified range of measurement
  • Vernier scale in metric units for taking precise inside dimension (ID) measurements
  • Locking clamp to hold measurements in place
  • Satin chrome finish helps resist rust and reduce glare
  • High-grade tool steel construction for durability
SaleNo. 9
Mitutoyo 141-233, 2" - 12" X .001" Interchangeable Rod Inside Micrometer
  • Used to measure a wide range of ID measurements
  • Each interchangeable rod is marked with it's measuring range
  • Supplied with holding handle
  • Clear graduations on satin chrome finish mic head
  • Supplied in a fitted plastic case
SaleNo. 10
Mitutoyo 137-213 Tubular Vernier Inside Micrometer, Extension Rod Type, 2-20" Range, 0.001" Graduation, +/-6.00052" Accuracy, 6 pcs Extension Rods
  • Tubular micrometer measures the inside dimensions of cylinders, rings, and parallel surfaces
  • Vernier scale in inch units for taking precise inside dimension (ID) measurements
  • Includes interchangeable extension rods for a diversified range of measurement
  • Slow head travel helps provide fine positioning
  • Solid extension rods help provide durability
No. 12
Shars 2-24" Inside Micrometer Set, 0.001" Graduation 303-2214 P)
  • SKU# 303-2214
  • Measuring Range: 2-24"
  • Accuracy: 0.00005"X(3+N+L/2)
  • (n=number of rod, L=maximum measuring length)
  • Product Included: 1 pc of micrometer head range 2.0-2.5"; Tubular extension tubular (0.5", 1", 2", 4", 6", 8"); Referenced setting standard; Wrench
No. 13
Mitutoyo 139-202, 4-40 X .001 Tublar Inside Micrometer
  • Used to measure a wide range of ID measurements.
  • 1" Travel mic head.
  • Size in marked on each extension tube.
  • Clear graduations on satin chrome finish mic head.
  • Supplied in a fitted wood case.
No. 14
Starrett Tubular Inside Micrometer Set with Case, Lock Nut, Quick-Reading Figures, Hardened, Interchangeable and Ground Anvils - 4-40" Range, .001" Graduations - 823EZ
  • Heavy-Duty - The Starrett Tubular Inside Micrometer has rigid and lightweight rods, quick reading figures and lock nut. Extension rods are made of steel tubing and each rod is marked with length.
  • Hardened and Ground Anvils - The tubular comes with hardened and ground anvils. It has an excellent service life and outstanding work performance.
  • Interchangeable Anvils - It is equipped with easily interchangeable anvils for diversified gaging, providing the full range in steps with a micrometer.
  • The Perfect Accessory - Used in a wide variety of industries as an essential part of metalworking and woodworking, Starrett tools can be used in various applications and offers unparalleled service with execution like no other.
  • The Standard for Excellence - Proudly made in the USA, Starrett combines over 140 years of American heritage and innovation with globally sourced materials to deliver exceptional quality tools and products.
No. 15
Fowler 52-275-001-1, Inside Micrometer with 0.2-1.2" Measuring Range
  • 1 year warranty offered by Fowler High Precision
SaleNo. 16
Mitutoyo 137-203 Tubular Vernier Inside Micrometer, Extension Rod Type, 50-500mm Range, 0.01mm Graduation, +/-0.019mm Accuracy, 6 pcs Extension Rods
  • Tubular micrometer measures the inside dimensions of cylinders, rings, and parallel surfaces
  • Vernier scale in metric units for taking precise inside dimension (ID) measurements
  • Includes interchangeable extension rods for a diversified range of measurement
  • Slow head travel helps provide fine positioning
  • Solid extension rods help provide durability
No. 17
Garosa Inside Micrometer 0-13mm Micrometer Accuracy 0.01mm for Fine Tuning of Various Accuracy Instruments(Flat Head)
  • USED FOR: Suitable for fine-tuning of various accuracy instruments and measuring equipment.
  • MEASUREMENT TOOL: Used for machine tools, fixtures and special measuring tools, etc.
  • CONVENIENT TO USE: Accuracy design, high accuracy and easy to use.
  • WIDELY APPLICATION: Suitable for LCD display production and testing equipment, positioning and loading of LCD prism cameras, optical fiber positioning, optical communication system products and testing equipment, etc.
  • AFTER SALE: Please feel to us at first if there is any problem,and we are always here to support you.
No. 18
Starrett Solid Rod Inside Micrometer Set with Quick-Reading Figures, Hardened and Ground Anvils - Insulated, Adjustable, 2-8" Range, .001" Graduations, 6-Pack - 124AZ
  • Quality Made - The Starrett Solid Rod Inside Micrometer Set has adjustable insulated rods marked with length, hardened and ground advils along with quick-reading figures, and provides years of reliable service.
  • The Perfect Accessory - Used in a wide variety of industries as an essential part of metalworking and woodworking, Starrett tools can be used in various applications and offers unparalleled service with execution like no other.
  • Meets Strong Demands - Committed in providing customers with consistent and reliable solutions, Starrett has set the standard for precision, quality and innovation. Our products are long-lasting, robust with excellent service and performance.
  • Accuracy You Can Count On - Starrett precision measuring tools exceed accuracy and performance requirements of national and international standards, providing excellent fine precision tools for industrial, professional and consumer markets worldwide.
  • Precision Tools - Our Starrett hand tools have been the standard for high quality dimensional measuring tools since 1880, manufactured with excellence and superior workmanship.
SaleNo. 19
Mitutoyo 141-002 Vernier Inside Micrometer, Interchangeable Rod Type, 1-1.25" Range, 0.001" Graduation, +/-0.000265" Accuracy, 50-75mm
  • Includes interchangeable rods for a diversified range of measurement
  • Vernier scale in inch units for taking precise inside dimension (ID) measurements
  • Locking clamp to hold measurements in place
  • Satin chrome finish helps resist rust and reduce glare
  • High-grade tool steel construction for durability
SaleNo. 20
Fowler 52-243-212-1, Inside Tube Micrometer With 2-12" Measuring Range
  • Micrometer Set: The inside micrometer set consists of a micrometer head and a series of fully hardened and lapped extension rods of different lengths, all with carbide measuring faces
  • Accurate Reading: Microfine graduations on satin chrome finish; 0.001" graduation and accuracy of 0.00005" x (3 + L"/2); features quick, easy zero adjustments on the sleeve
  • Durable Construction: This inside micrometer's anvil and spindle are hardened and precision ground with microlap finish on ends; has a positive locking nut on the spindle
  • Pressure Contact: This micrometer has coiled spring pressure contact type rods that are marked with appropriate length
  • Set Includes: A Fowler Inside Micrometer, a wrench, and a case for storage

How to choose a good inside micrometers

Does the idea of finding a fantastic inside micrometers make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!

Your presence here indicates that you are interested in inside micrometers. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top inside micrometers products available right now. You might be wondering how we came up with the list. How was this buying guide developed?

First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top inside micrometers on the market right now!

The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:

Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top inside micrometers brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.

Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top inside micrometers based on those.

Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.

Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.

Customer ratings:  Would it be accurate to suggest that the inside micrometers were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.

Customer Reviews: Like ratings,  provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.

Seller Rank: This is very intriguing! Not only do you need a good inside micrometers, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.

Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your inside micrometers.

Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting inside micrometers for months and years to come.

Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.

Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.

These are the standards by which we selected our inside micrometers. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.

Why should you believe us?

There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what inside micrometers should you purchase in 2022?

This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on inside micrometers.