Checkline SB [SB5-SS] 5-Step SS (304) Test Block, 0.100 / 0.200 / 0.300 / 0.400 / 0.500 Inch - Uncertified, Supplied In Plastic Case

Checkline SB [SB5-SS] 5-Step SS (304) Test Block, 0.100 / 0.200 / 0.300 / 0.400 / 0.500 Inch - Uncertified, Supplied In Plastic Case
The SB4 is a 4-Step Test Block fabricated from 1018 Steel (without Certification) for convenient confirmation of thickness gauge calibration, when NIST-Traceable Calibration Step Blocks are NOT REQUIRED. Supplied in a plastic case.