Starrett blocks can be used to test Rockwell scales. They are available in steel and brass. Each block is serialized, with a certificate detailing the environmental conditions used to test the block. Actual readings are given, with the averages of these readings: min. reading, max reading, and a repeatability figure. The blocks are calibrated according to ASTM E-18 standards, ANSI (NCSL) Z540-1, (ISO) 10012-1, ISO/IEC 17025, and Mil-std 45662A.
PRICE: $66.00

PRICE: $2,743.00