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The 8 Best gage blocks of 2025

Are you trying to find gage blocks 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 gage blocks 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 14 hours of research and did 48 gage blocks 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 gage blocks you can buy today

No. 1
WEN 10481 81-Piece Steel Gauge Block Set with Case
112 Consomer Reviews
WEN 10481 81-Piece Steel Gauge Block Set with Case
  • Workshop-grade set features 81 individual steel blocks of various sizes
  • Sizes range from .05 inches all the way up to 4 inches
  • Includes unique certificate of inspection following ASME B89.1.9 standards
  • Calibrate measuring equipment with a tolerance of +0.25 μm to −0.15 μm
  • Hard-shelled carrying case keeps the blocks organized and protected from contaminants
No. 2
Accusize Industrial Tools Precision 81-Piece Steel Gauge Block Set, Grade B Accuracy, Corrosion-Resistant, P900-S581
  • 81 pc Grade B Steel Gage Block Set with MFG'S certificate
  • Manufactured under carefully controlled conditions allowing for the highest degrees of accuracy when used at a temperature of 68 degrees F. (20 C).
  • All gage block sets are assigned serial numbers and accompanied with a certificate of inspection listing the deviation for each block
  • Each gage block set meets or exceeds federal specification ASME B89.1.9-2002.
  • Hardened to HRC 64 / All gage block sets are made to special standard to resist corrosion and defacement
SaleNo. 3
Mitutoyo - 611201-531 Steel Rectangular Gage Block, ASME Grade 0, 1.0" Length
  • Grade 0 gage block supplied with a Mitutoyo certificate of inspection that the block meets American Society of Mechanical Engineers (ASME) B89.1.9-2002 standard for flatness, length, parallelism, and surface finish
  • High-carbon, high-chrome steel provides high hardness and wear resistance
  • Rectangular base for accurate wringing
  • Nominal length (in inches) indicated with laser-etched, black characters
  • Identification number etched in block for traceability
SaleNo. 4
Mitutoyo - 611201-541 Steel Rectangular Gage Block, ASME Grade AS-1, 1.0" Length
  • Grade AS-1 gage block supplied with a Mitutoyo certificate of inspection that the block meets American Society of Mechanical Engineers (ASME) B89.1.9-2002 standard for flatness, length, parallelism, and surface finish
  • High-carbon, high-chrome steel provides high hardness and wear-resistance
  • Rectangular base for accurate wringing
  • Nominal length (in inches) indicated with laser-etched, black characters
  • Identification number etched in block for traceability
No. 5
Shars Grade Economy 81 PCS Rectangular Gage Block Set with NIST traceable certificate 303-5311C M)
  • Part# 303-5311C
  • 9 blocks: .1001-.1009" in .0001" steps
  • 49 Blocks: .101-.149" in .001" Steps
  • 19 Blocks: .050-.950" in .050 steps
  • 4 Blocks: 1-4" in 1" steps
No. 6
Mitutoyo Steel Rectangular Gage Block, ASME Grade AS-2, 0.125" Length
  • Grade AS-2 gage block supplied with a Mitutoyo certificate of inspection that the block meets American Society of Mechanical Engineers (ASME) B89.1.9-2002 standard for flatness, length, parallelism, and surface finish
  • High-carbon, high-chrome steel provides high hardness and wear-resistance
  • Rectangular base for accurate wringing
  • Nominal length (in inches) indicated with laser-etched, black characters
  • Identification number etched in block for traceability
SaleNo. 7
WEN 10423 3 x 2 x 1-Inch Steel-Hardened Precision 123 Blocks, Two Pack
  • Perfect for machinists, woodworkers, metalworkers, and more
  • Each block measures 3 by 2 by 1 inches in size
  • Features 5 threaded 3/8-16 UNC cross-drilled holes
  • Calibrate equipment, space workpieces, or collect exact measurements
  • Includes a set of two 1-2-3 blocks
No. 8
HFS(R) 36 Pieces Rectangular Steel Gage Block Set Grade Economy for Workshop Calibration and Inspection
  • [Complete Set]: 36 Blocks include 9 pieces: 0.1001-0.1009", 9 pieces: 0.101-0.109", 9 pieces: 0.110-0.190", 4 pieces: 0.200- 0.500", 3 pieces: 1.000", 2.000", 4.000", and 2 pieces: 0.050", 0.100". Economy accuracy ensures measurements with a tolerance of +/- 0.000050".
  • [Durable Material]: Made of fully seasoned alloy tool steel, hardened to 65 RC for long wear and resistance to stains and rust.
  • [Mirror-Finished Surfaces]: Ground and micro-lapped measuring surfaces provide a mirror finish for wringability.
  • [Laser Marked]: Each block is laser marked with the nominal length and serial number and is accompanied by a calibration certificate.
  • [Versatile Applications]: Perfect for workshop calibration, inspection, dimensional metrology, and tool and cutter inspection.
SaleNo. 10
Fowler 53-672-081-0, Economy 81 Rectangular Gage Block Set
  • DURABLE CONSTRUCTION: This block set is made of the finest grade of high carbon / chrome steel that has a low coefficient of thermal expansion; fully stress relieved and hardened to 65 RC
  • ACCURANT MEASUREMENT: The gage block set is lapped and polished to a very low micro-surface finish; they feature a ± 0.00005" accuracy
  • INDUSTRIAL STANDARD: Standard industrial sizes ensure complete interchangeability with all accessories
  • SET INCLUDES: The set of gage blocks includes a deluxe fitted case and certificate of inspection traceable to the National Institute of Standards & Technology
  • BUILT TO LAST: Block have a wide range of tolerence and are able to withstand a wide range of shop needs
No. 11
Mitutoyo 611615-531 Steel Rectangular Gage Block, ASME Grade 0, 5.0 mm Length
  • Grade 0 gage block supplied with a Mitutoyo certificate of inspection that the block meets American Society of Mechanical Engineers (ASME) B89.1.9-2002 standard for flatness, length, parallelism, and surface finish
  • High-carbon, high-chrome steel provides high hardness and wear resistance
  • Rectangular base for accurate wringing
  • Nominal length in metric [millimeter (mm)] units indicated with laser-etched, black characters
  • Identification number etched in block for traceability
No. 12
Accusize Industrial Tools 87 Pc Metric Gage Block Set, Grade 2, Din861 German Standard with Mfg's Certificate, 0087-2160
  • Manufactured under carefully controlled conditions allowing for the highest degrees of accuracy when used at a temperature of 68 degrees F. ( 20 C).
  • All gage block sets are assigned serial numbers and are accompanied with a certificate of inspection listing the deviation for each block
  • DIN861 Grade 2 = +/- 0.000050"
  • Surface Hardness: HRC 64
  • All gage block sets are made to special standard to resist corrosion and defacement
No. 13
81 pc Steel Gauge Block Set, Grade AS-1, Rectangular
  • 81 pc Gage Block Set; Grade AS-1
  • Manufactured under carefully controlled conditions; Calibrated at 68°F
  • Each gauge block is tested for accuracy; Set comes with a certificate listing the deviation for each block; Tested according to ASME B89.1.9-2002 Federal Standards
  • Polished to a mirror-like surface finish for maximum accuracy; Designed to resist corrosion and wear, ensuring longevity and durability even with frequent usage
  • See description for included gauge block sizes
No. 14
Accusize Industrial Tools 36 Pc Steel Gage Block Set, Grade As-2 Asme B89.1.9-2002, with Mfg Certificate, 0036-6001
  • Manufactured under carefully controlled conditions allowing for the highest degrees of accuracy when used at a temperature of 68 degrees F. ( 20 C).
  • All gage block sets are assigned serial numbers and are accompanied with a certificate of inspection listing the deviation for each block
  • Each gage block set meets or exceeds federal specification ASME B89.1.9-2002
  • All gage block sets are made to special standard to resist corrosion and defacement
  • Capstone degrees of accuracy
No. 16
No. 17
81 Pc Rectangular Steel Gage Block Set Grade B Space Block Harden Gauges .000005
  • 9 Blocks -- .1001" thru .1009" step of .0001"; Wooden case INCLUDED
  • 49 Blocks -- .101" thru .149" step of .001"; Wooden case dimension: 7-1/2''L x 12''W x 2''H
  • 19 Blocks -- .050" thru .950" step of .050"; Weight: 5.65 lbs
  • 4 Blocks -- 1.000 thru 4.000 step of 1.000"
  • Grade B Shop Accuracy to +/- 0.0000050" (1" & Less)
No. 18
HHIP 4101-0099 81 Piece Rectangular Gage Block Set Case Only
  • Fits any grade rectangular blocks
  • Well made wooden case with high quality hardware
  • Insert provides a perfect fit for each block
  • Clearly labeled with sizes
SaleNo. 19
Mitutoyo-516-902-26 Steel Rectangular Gage Block Set, ASME Grade 0, 0.05 - 0.95" Length (81 Blocks)
  • Grade 0 gage blocks supplied with a Mitutoyo certificate of inspection that the blocks meet American Society of Mechanical Engineers (ASME) B89.1.9
  • High-carbon, high-chrome steel provides high hardness and wear-resistance
  • Rectangular shape for accurate wringing
  • Nominal length (in inches) indicated with laser-etched, black characters
  • Identification number etched in block for traceability
No. 20
Grade 0 Steel Rectangular Gage Block (50mm)
  • 【High Quality】Different range , meet your different choices ,0 grade,please choose carefully before order
  • 【Portable and Convenient】Light weight,easy and convenient to take and store
  • 【Easy to use 】Rectangular base for accurate wringing,Identification number etched in block for traceability
  • 【Durable Use】The gauge block gauge is made of high-quality stainless steel,stable, durable, not easy to rust,which is durable and has a long service life. it can be used for a long time
  • 【Application】This Gauge block is used to calibrate other accuracy of gauge

How to choose a good gage blocks

Does the idea of finding a fantastic gage blocks 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 gage blocks. 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 gage blocks 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 gage blocks 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 gage blocks 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 gage blocks 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 gage blocks 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 gage blocks, 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 gage blocks.

Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting gage blocks 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 gage blocks. 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 gage blocks 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 gage blocks.