Gilmore Diamond Calibration Laboratory is ISO 17025 compliant. Our Laboratory is accredited by NVLAP for the calibration of Rockwell Diamond Indenters and Ball Indenters. Click here to view our ISO/IEC 17025 accreditation certificate.
Rockwell Hardness Testing calibration procedures mandate the use of Diamond Indenters that are verified for geometrical and performance standards, per ASTM and ISO requirements by an accredited laboratory. Each Indenter is assigned a certificate of compliance assuring traceability for that indenter.
Gilmore is the ONLY U.S. diamond indenter manufacturer accredited by the United States Department of Commerce / N.I.S.T. for the measurement and calibration of diamond indenters.
Diamond Indenters are manufactured and in stock for all makes and models of Rockwell Hardness Testing Machines. “Special Indenters” are also manufactured to blueprint specifications for use in difficult testing situations.
Damaged Rockwell Indenters can often be recut/repaired and re-certified to current ASTM E-18 specifications.
Standard Rockwell Indenters : ASTM E-18, Class B, Working Grade
Part #: | Description: |
101 |
HRC, HRA, & HRD Scales Diamond Indenter |
102 |
HRN Scale Diamond Indenter |
104 |
HRA Scale - Carbide Test Diamond Indenter |
105 |
HRC,HRA,HRD & HRN Scales Diamond Indenter |
106 | HRC,HRA & HRD Scales Diamond Indenter - Wilson 400 and Affri Testers |
106-N | HRN Scales Diamond Indenter - Wilson 400 and Affri Testers |
201 | HRC,HRA & HRD Scales Diamond Indenter - Newage Indentron and Indentec Testers |
202 | HRN Scales Diamond Indenter - Newage Indentron and Indentec Testers |
203 | HRA Scale - Carbide Test Diamond Indenter - Newage Indentron and Indentec Testers |
205 | HRC,HRA,HRD & HRN Scales Diamond Indenter - Newage Indentron and Indentec Testers |
301 |
HRC,HRA & HRD Scales Diamond Indenter - Newage Versitron and Ernst Testers |
302 |
HRN Scales Diamond Indenter - Newage Versitron and Ernst Testers |
304 | HRC,HRA,&HRD Scales - Taper Style Diamond Indenter - Newage Versitron and Ernst Testers |
305 |
HRN Scales - Taper Style Diamond Indenter - Newage Versitron and Ernst Testers |
401 | HRC,HRA & HRD Scales - Wilson Mobile and Emco Portable Testers |
402 | HRC,HRA & HRD Scales - Reihle, and Clark Portable Testers |
403 | HRC, HRA, & HRD Scales - Ames Portable Tester |
Rockwell Indenters for Special Applications
Part #: | Description: |
1777-C | HRC Scale Diamond Indenter |
1751-C | HRC Scale Diamond Indenter |
1778-C | HRC Scale Diamond Indenter |
1357-N | HRN Scale Diamond Indenter |
1435-N | HRN Scale Diamond Indenter |
1702-N | HRN Scale Diamond Indenter |
1794-N | HRN Scale Diamond Indenter |
1795-N | HRN Scale Diamond Indenter |
1796-N | HRN Scale Diamond Indenter |
1478-A | HRA Scale Diamond Indenter |
1480-A | HRA Scale Diamond Indenter |
1780-A | HRA Scale Diamond Indenter |
Rockwell Ball Penetrators
Part #: | Description: |
601 | 1/16” Ball Penetrator |
602 | 1/8” Ball Penetrator |
603 | 1/4” Ball Penetrator |
604 | 1/2” Ball Penetrator |
609 | 1/16” Carbide Balls (each) |
610 | 1/8” Carbide Balls (each) |
611 | 1/4” Carbide Balls (each) |
612 | 1/2” Carbide Balls (each) |
616 | 1/16” Ball Penetrator - Versitron Style |
617 | 1/8” Ball Penetrator - Versitron Style |
618 | 1/16” Ball Penetrator- Indentron Style |
619 | 1/8” Ball Penetrator- Indentron Style |
Recut / Repair Services & Replacement Parts
Rockwell Indenters Repaired
Send us your damaged indenters for repair and certification. We will inspect and advise you of the status at no charge. We offer repair services for the following indenters and ball penetrators.
- HRC Scale
- HRN Scale
- HRA Scale / Carbide Ranges
- HRC & HRA Scale
- 1/16” Ball Penetrator
- 1/8” Ball Penetrator
- 1/4” Ball Penetrator
- 1/2” Ball Penetrator
Replacement Carbide Balls
- Replacements balls are available for our 1/16”, 1/8”, 1/4” and 1/2” carbide ball penetrators.