Starrett PT05056 67885

Product Highlights

• Serialized with a certificate detailing the environmental conditions used to test the block
• Actual readings are given, with the averages of minimum reading, maximum reading and a repeatability figure
• Hardness test blocks are designed to be used on one side only
• Indents should be more than 0.01 in from the centers of two indents or no closer to the block's edge than 0.04 in
• Compatible with 3814, 3816 and 3817 testers
• They are available in steel, brass and aluminum