Westport 09R0343 HTB25 Hardness Testing Block

Westport 09R0343 HTB25 hardness testing block is a precision reference block from Westport designed to provide a defined Rockwell C-scale value (HRC) for hardness testing and verification tasks in lab, shop, or production settings. It lists a hardness of 24.88 HRC with a -1.0 tolerance, and uses the HTB25 model designation together with the 09R0343 part number for exact identification in inventories and quality records. This exact specification enables technicians to compare instrument readings against a documented standard and to maintain consistency when evaluating C-scale measurements across different testers. As part of Westport's HTB25 family, the block serves as a dedicated reference within hardness testing workflows, helping ensure traceability and repeatable results where precise C-scale references are required.