Rockwell Calibration Set
      ***Requires Make/Model of Hardness Tester***
Calibration set includes: 1/16" Master Ball Penetrator, HRB35 Rockwell Master Test Block, HRB55 Rockwell Master Test Block, HRB85 Rockwell Master Test Block 
 
- Provides superior accuracy in validating hardness testers
 - Master test blocks and Master indenter used to calibrate the set Highest quality steel and brass
 - Test blocks are hand lapped and polished to a mirror finish
 - Calibrated in state of the art ISO/ IEC 17025 accredited laboratory ISO 6508
 - Manufactured in accordance to the latest Rockwell Revision; E18-07
 
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