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Gage blocks are precision measuring instruments essential for calibration and quality control in manufacturing and machining. Selecting the correct set and accessories ensures accuracy and reliability in your measurements, preventing costly errors and rework. Understanding the key factors involved in their purchase will lead to a more efficient and effective workshop environment.
Manufactured under carefully controlled conditions allowing for the highest degree of accuracy when used at a temperature of 68 degrees F ( 20 degree C)
All gauge block sets are assigned serial numbers and are accompanied with a certificate of inspection listing the deviation for each block
All gauge block sets are made to special standards to resist corrosion and defacement
The coefficient of thermal expansion is 6.4 X 10
Each gage block set meets or exceeds federal specification ASME B89.1.9-2002.
DESIGNED FOR SQUARE GAGE BLOCKS: Complete accessory set for use with Mitutoyo square gage blocks, enabling the assembly of precision measuring stacks for height, depth, and comparative measurement applications.
METRIC ACCESSORY KIT: Includes 27 metric-based components, such as posts, clamps, rods, and connectors; allowing users to build stable, accurate gage block assemblies tailored to specific measurement tasks.
CREATES PRECISION MEASURING INSTRUMENTS: Helps convert individual gage blocks into functional measurement tools by securely holding blocks together, improving versatility in inspection, calibration, and setup work.
WOODEN STORAGE CASE INCLUDED: Supplied with a durable wooden case that protects components from damage, keeps pieces organized, and ensures long-term reliability in workshop or laboratory environments.
A LEGACY OF QUALITY: Our ultra-precise measurement solutions bring improved performance to countless industries, including aerospace, medical, automotive and energy. With more than 5,500 products the largest product portfolio of any commercial metrology...
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
【Setup Blocks Woodworking】: This 14 pcs set is meticulously crafted to meet a variety of woodworking needs. Each block can be used individually or stacked, offering hundreds of combinations to cater to your diverse requirements. Ranging from...
【High Quality Materials】: set up blocks for woodworking are made of high quality aluminum alloy and anodized for a smooth surface. This not only ensures portability and ease of use, but also significantly enhances its wear resistance and durability...
【Multi Surface Laser Engraving】: Crafted with precision, setup blocks boast superior laser-engraved labels, delivering crisp and enduring markings that are effortlessly legible. Designed for durability, they maintain their wear-resistant properties...
【Enhanced Storage & Portability】: setup blocks woodworking are accompanied by a robust transparent plastic storage case, engineered with a streamlined internal layout for effortless organization of the gage blocks. Not only does it offer added...
【Diverse Utility】: Compatible with a range of machinery including router table, band saws, and planers, these gage blocks facilitate precise height, depth, and angle measurements, while also providing assistance with drilling tasks. Tailored to meet...
COMPLETE SET: 14-piece gage block accessory set designed specifically for use with rectangular gage blocks for precision measurement applications.
VERSATILE APPLICATION: Compatible with standard rectangular gage blocks, this set provides essential accessories for dimensional measurement and calibration tasks.
PROFESSIONAL QUALITY: Manufactured by SPI, a trusted brand in precision measurement tools, ensuring reliability and accuracy in industrial applications.
COMPREHENSIVE KIT: Includes various accessories that enhance the functionality of your rectangular gage blocks for complex measurement setups.
PRECISION ENGINEERING: Designed for dimensional measurement professionals requiring exact calibration and layout capabilities in manufacturing environments.
PRECISION IMPERIAL GAGE BLOCK: Maintains instrument accuracy during calibration with a steel square gage block and traceable identification, ensuring consistent wringing and long-term dimensional stability in QA labs and shop-floor checks.
ETCH-MARKED TRACEABILITY ID: Drive calibration confidence - this ASME steel gage block provides a precise reference length and a square base that wrings quickly and holds tight, so stacks set fast and stay stable during micrometer, caliper, and...
RIGID-PLATE BEARING SUPPORT: Built for repeatability in QA and on the shop floor, this steel block is inspected to ASME B89.1.9 requirements with a finish suited for reliable wringing; use it to standardize masters, build stacks, and verify instruments...
TOOL-STEEL FRAME BODY: Speed reliable wringing and stack setup for quicker instrument checks. Ground faces and stable geometry promote fast, reliable wringing.
A LEGACY OF QUALITY: Our ultra-precise measurement solutions bring improved performance to countless industries, including aerospace, medical, automotive and energy. With more than 5,500 products the largest product portfolio of any commercial metrology...
Accuracy: ±0.0001"，Ultra-high precision in eliminating system errors, striving for ultimate performance, with high return rate.
Scale：Each steel spacer block clearly marked for size,Clear scales enable people to read the values quickly and accurately,They are well-made and reliable.
Additionally：Four connecting screws are included to make any length desired.，4 screws for connecting spacers block and hex keys; Used for set-up work, setting sine bars, high build-up work and for machine work shops.
Inclusion：The space gage block set includes 36 steel spacer block, four screws and one hexagonal key.
Material：Made of precision tool steel,Extremely high hardness and wear resistance, extremely long service life, and extremely low failure rate.
Last update on 2026-07-16 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Gage Blocks & Accessories
Understanding Gage Block Materials
Steel: The most common material, steel gage blocks offer excellent stability and durability. They are typically hardened and ground to precise dimensions. However, steel is susceptible to rust and requires careful maintenance and oiling.
Ceramic: Ceramic gage blocks are highly resistant to corrosion and wear, making them ideal for environments where rust is a concern. They are also less affected by temperature changes than steel, contributing to greater measurement stability.
Carbide: Tungsten carbide gage blocks provide exceptional hardness and wear resistance, outperforming both steel and ceramic. They are also dimensionally stable and non-magnetic, but they can be more brittle.
Key Features to Consider
Accuracy and Tolerance: Gage blocks are graded according to their accuracy. Common grades include AA (reference standards), A (inspection), and B (workshop). The required accuracy depends on the application.
Set Size and Configuration: Sets vary in the number of blocks and their sizes. Consider the range of measurements you need to perform. Some sets are designed for specific tasks, while others offer a broader selection.
Accessories: Essential accessories include holders, clamps, and measuring instruments like micrometers and calipers that work in conjunction with gage blocks. Ensure compatibility with your chosen blocks.
Maintenance and Care
Proper cleaning and oiling are crucial, especially for steel blocks, to prevent corrosion and maintain accuracy.
Store blocks in their protective cases to prevent damage and contamination.
Handle blocks with care to avoid nicks or scratches that can affect their precision.
Frequently Asked Questions
What is the difference between gage block grades?
Gage block grades indicate their accuracy and intended use. Grade AA is for the highest precision calibration, Grade A is for inspection, and Grade B is for general workshop use where slightly less precision is acceptable.
How do I choose the right size set?
Consider the range of measurements you commonly perform. A set with a good selection of standard metric or imperial sizes will cover most applications. You can also supplement a smaller set with individual blocks as needed.
Are ceramic gage blocks worth the extra cost?
Ceramic blocks offer superior resistance to corrosion and wear, and better thermal stability. If your work environment is harsh or requires extremely stable measurements, the investment can be justified by their longevity and reduced maintenance.
What accessories are essential?
Essential accessories include holders to create measuring assemblies, and cleaning supplies like lint-free cloths and a suitable oil for steel blocks. Compatibility between blocks and accessories is key.
How often should gage blocks be recalibrated?
Recalibration frequency depends on usage and the required accuracy. For critical applications, annual recalibration is common. For less demanding use, a less frequent schedule may suffice, but regular checks are always recommended.
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