--- product_id: 206795355 title: "Mitutoyo Steel Rectangular Gage Block, ASME Grade AS-1, 0.5 mm Length" brand: "mitutoyo" price: "586 zł" currency: PLN in_stock: false reviews_count: 10 url: https://www.desertcart.pl/products/206795355-mitutoyo-steel-rectangular-gage-block-asme-grade-as-1-0 store_origin: PL region: Poland --- # 0.5 mm precision length High-carbon, high-chrome steel durability ASME Grade AS-1 certified Mitutoyo Steel Rectangular Gage Block, ASME Grade AS-1, 0.5 mm Length **Brand:** mitutoyo **Price:** 586 zł **Availability:** ❌ Out of Stock ## Summary > 📐 Elevate your precision game—because every micron counts! ## Quick Answers - **What is this?** Mitutoyo Steel Rectangular Gage Block, ASME Grade AS-1, 0.5 mm Length by mitutoyo - **How much does it cost?** 586 zł with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/206795355-mitutoyo-steel-rectangular-gage-block-asme-grade-as-1-0) ## Best For - mitutoyo enthusiasts ## Why This Product - Trusted mitutoyo brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Micron-Level Accuracy:** Certified to ASME B89.1.9-2002 standards for flatness, length, and parallelism—because precision is non-negotiable. - • **Laser-Etched Traceability:** Unique ID and nominal length laser-etched for easy identification and reliable calibration tracking. - • **Durable Steel Construction:** Crafted from high-carbon, high-chrome steel for unmatched hardness and wear resistance in demanding workshop environments. - • **NIST-Traceable Inspection Certificate:** Comes with a Mitutoyo-certified inspection report ensuring your measurements meet the highest industry standards. - • **Rectangular Base for Perfect Wringing:** Engineered for flawless wringing to stack blocks seamlessly and achieve exact combined lengths every time. ## Overview The Mitutoyo Steel Rectangular Gage Block, ASME Grade AS-1, 0.5 mm length, is a precision calibration tool made from high-carbon, high-chrome steel. It meets stringent ASME B89.1.9-2002 standards for flatness, length, parallelism, and surface finish, backed by a Mitutoyo inspection certificate traceable to NIST. Designed with a rectangular base for accurate wringing and laser-etched markings for easy identification, this gage block is ideal for professional workshops and inspection labs demanding micron-level accuracy. ## Description The Mitutoyo grade AS-1 rectangular gage block is made of steel, has its nominal length engraved in metric [millimeter (mm)], and is supplied with a Mitutoyo inspection certificate that states that the block meets American Society of Mechanical Engineers (ASME) B89.1.9-2002 grade standard for flatness, length, parallelism, and surface finish. The inspection certificate specifies the deviation of the individual block from its nominal length. Gage blocks are commonly used to calibrate fixtures and precision instruments in workshop, inspection, and dimensional metrology applications, to inspect tools such as mounting tools, cutters, fixtures, and mechanical parts, and in the gage manufacturing process itself.This grade AS-1 gage block is commonly used for workshop and inspection applications to calibrate fixtures and precision instruments, to inspect a variety of tools such as mounting tools, cutters, fixtures, and mechanical parts, and for manufacturing gage applications. It is made of high-carbon, high-chrome steel which has a high hardness for minimum deterioration, and is selected for its wear-resistance. This gage block has a rectangular base for accurate wringing. Nominal length is measured in metric [millimeter (mm)], and indicated with laser-etched, black characters. The length of a gage block is usually slightly shorter than its stamped nominal length, to account for the thin layer of oil or wring film used when two or more blocks are wrung together. An identification number is laser-etched on the block for traceability. The block has a depth of 9 millimeters. It comes in a carrying case with a padded, formed interior.This gage block is supplied with a Mitutoyo inspection certificate [National Institute of Standards in Engineering (NIST)-traceable] that the block meets ASME B89.1.9-2002 standard for flatness, length, parallelism, and surface finish.Gage blocks (also called gauge blocks, Hoke blocks, Jo blocks, slip gages, and Johansson gages) are blocks used to calibrate measuring equipment and to standardize the measurement of length in manufacturing industries. They are commonly made of precision-ground steel, ceramic, or carbide material, and have a square or rectangular base. Each block has a unique identification number. Length is in inch or millimeter measurement. They can be sold individually, and are also sold in sets with blocks of varying lengths. Gage blocks can be wrung together to create a required length. Wringing is the process of lapping blocks together with a small amount of oil. They are standardized by grade, which refers to the tolerance or deviation of an individual block from its nominal length. Gage block grades are defined for flatness, length, parallelism and surface finish. Some grades of gage blocks meet standards such as ASME, Association for Iron and Steel (AIST), and International Organization for Standards (ISO). Application and required level of accuracy dictate which grade of gage block should be used. Some manufacturers provide an internally-generated certificate of inspection to verify that a gage block meets grade standards. Gage blocks can also go through a calibration certification process to verify measurement accuracy. Calibration is performed by an accredited facility. Gage blocks are commonly recalibrated after use to ensure dimensional accuracy. If a gage block does not meet calibration standards, it should no longer be used. Both a certificate of inspection and a calibration certificate specify the deviation from the nominal length.Mitutoyo manufactures precision measuring tools, metrology equipment, and systems. The company was founded in Tokyo in 1934 and formed Mitutoyo America Corporation in 1963, which is headquartered in Aurora, IL. Review: Accurate precision product - I had this calibrated at a local precision shop here in Kansas City, Missouri, this is dead accurate. Review: Great workshop gage block - These gage blocks are great. I use them to check my mics, calipers, and height gage. Only the nominal length is calibrated. Grade AS-1 means that they are calibrated to plus or minus 0.2 microns. The rule of thumb is to use a gage block calibrated to a level 10 times more accurate than the tool you will use it to check. In this case, Grade AS-1 is sufficient to check my micrometer with a resolution of 0.002mm. NIST has a nice gage block handbook available for download http://www.nist.gov/calibrations/upload/mono180.pdf ## Features - 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 metric [millimeter (mm)] indicated with laser-etched, black characters - Identification number etched in block for traceability ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B003U9WBQY | | Best Sellers Rank | #430,812 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #128 in Gage Blocks | | Date First Available | June 30, 2010 | | Item Weight | 0.493 ounces | | Item model number | 611506-541 | | Manufacturer | Mitutoyo | | Package Dimensions | 4.13 x 2.13 x 0.91 inches | ## Images ![Mitutoyo Steel Rectangular Gage Block, ASME Grade AS-1, 0.5 mm Length - Image 1](https://m.media-amazon.com/images/I/41smGGQRedL.jpg) ![Mitutoyo Steel Rectangular Gage Block, ASME Grade AS-1, 0.5 mm Length - Image 2](https://m.media-amazon.com/images/I/81HuY1YLBXL.jpg) ## Available Options This product comes in different **Item Thickness String, Item Length String, Number Of Items, Item Width String** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Accurate precision product *by M***H on May 2, 2025* I had this calibrated at a local precision shop here in Kansas City, Missouri, this is dead accurate. ### ⭐⭐⭐⭐⭐ Great workshop gage block *by C***S on January 18, 2015* These gage blocks are great. I use them to check my mics, calipers, and height gage. Only the nominal length is calibrated. Grade AS-1 means that they are calibrated to plus or minus 0.2 microns. The rule of thumb is to use a gage block calibrated to a level 10 times more accurate than the tool you will use it to check. In this case, Grade AS-1 is sufficient to check my micrometer with a resolution of 0.002mm. NIST has a nice gage block handbook available for download http://www.nist.gov/calibrations/upload/mono180.pdf ### ⭐⭐⭐ Not all sides may be exact *by M***O on September 3, 2014* I bought the 30mm x 9mm x 3mm block expecting that I would be able check the accuracy of my Mitutoyo calipers (500-196-30). The 3mm side of it was spot on ... exactly 3.00 mm. But the 30 and 9 sides of this block were off ... 29.94 and 8.88. Apparently only the 3mm side is what is inspected and the block is actually lasered with a "3". So I'm not sure if the of the other sides of the block are suppose to be 30.00 and 9.00 exactly or if my calipers are off. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pl/products/206795355-mitutoyo-steel-rectangular-gage-block-asme-grade-as-1-0](https://www.desertcart.pl/products/206795355-mitutoyo-steel-rectangular-gage-block-asme-grade-as-1-0) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-05-09*