For Wilson Mobile Portable Hardness Testers. "C" Scale ASTM E18 Class B Working Grade Diamond Indenter with Certificate. 1/4" standard straight shank with spring loaded retention ball on shank.Part #GDIC-M

Rockwell Hardness Testing calibration procedures mandate the use of Diamond Indenters that are verified for geometrical and performance standards, per the ASTM E18 current revision.

Gilmore manufactures indenters that exceed the specifications and tolerances required. Each indenter is assigned a certificate of compliance assuring traceability for each indenter.

Indenter performance verified to comply with N.I.S.T standard reference materials program.