Yamamoto Scientific Tool Laboratory Rockwell (HRB-S) hardness standard block

The hardness standard piece is a standard piece on which the shape of the numerical value determined by collating with the specified hardness standard is displayed, and the hardness standard is maintained.
The variation in hardness is extremely ideal.
The standard of hardness is based on the world-recognized numerical value.
For hardness test
*Orders for products with calibration certificates cannot be cancelled after they are placed. *Only products with (ISO document set included) or (JCSS calibration certificate included) in the product number will come with the relevant documents. *Please indicate the name to be written on the documents. *We do not deliver to private homes (detached houses or apartment buildings).