Leeb "D" & "G" Round Test Blocks

Phase II PlusSKU: PHT1100G-CERT

Leeb Test Blocks Part No.: PHT1100G-CERT

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Leeb Test Blocks


  • Phase II offers a vast array of different hardness test blocks for Rockwell, Brinell and Vickers scales, as well as Portable hardness testers
  • Phase II hardness test blocks are made of high grade materials to insure unmatched accuracy and repeatability throughout the entire block.
  • Phase II Hardness test block surfaces are precision ground and lapped to an average finish of less than 2uin.
  • Hardness Test blocks always engineered to obtain highly sensitive and accurate readings.
  • All Made in the USA hardness test blocks conform to current ASTM specifications
  • Traceability to NIST is offered on HRC steel blocks only.
  • Prestigious Accredited laboratory by A2LA and NVLAP in the USA


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