Best Gage Blocks

Gauge blocks are square or rectangular in shape, with flat surfaces, and have an engraved unique identification number and length (provided in either inches or millimeters). Wringing is the process of sliding blocks together with a small amount of oil, in order to create a longer surface. Founded in Tokyo in 1934, Mitutoyo is a leader in the metrology field, producing high-quality measurement products including mechanical, dimensional gauging products, focusing on micrometers, calipers, indicators, and other measurement tools, as well as output gauges, interfaces, data collectors, and analysis software.
Reviews
Find Best Price at Amazon"It came with everything promised, including a traceable calibration certificate for each block in the set and the set was serialized."
"New, Factory Wrapped, Very good quality."
"I work in a manufacturing firm and I use these gauge blocks professionally in the lab for calibration."
"Performed as desired."

Meets or exceed FS ASME B89.1.9-2002 and Conform to MIL-STDD-45662A 9 blocks: .1001" - .1009" in .0001" steps 49 blocks: .101" - .149" in .001" steps 19 blocks: .050" - .950" in .050" steps 4 blocks: 1.000" - 4.000" in 1.000" steps Fitted in heavy duty and precision made wooden box.
Reviews
Find Best Price at Amazon"Very accurate for what I need."
"Very good for what you pay."
"Well made."
"Great price point for all us cheap buyers."
"You need to check."
"I use them to set saw blade to fence spacing on my table saw."
"Item as desribed and delivered when promised."

The Mitutoyo grade AS-1 rectangular gage block is made of steel, has its nominal length engraved in inches, 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. 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 gage manufacturing applications. 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. 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.
Reviews
Find Best Price at Amazon"It is a very nice steel block."
"This product performed as expected."
"Worked well, check the size you want the picture is a bit misleading."
"Used it to check my calipers and micrometer."
"Good product as described."
Best Gage Block Accessories

Starrett 111 STAIRGAGE FIXTURE ATTACHMENT (PAIR). Enter your model number to make sure this fits.
Reviews
Find Best Price at Amazon"Prefer these over the other layout gauges that are available."
"Great for stair and rafter layout."