Rockwell Diamond Indenters & Ball Penetrators

Gilmore Diamond Calibration Laboratory is a NVLAP accredited ISO 17025 facility. 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 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
106HRC,HRA & HRD Scales Diamond Indenter - Wilson 400 and Affri Testers
106-NHRN Scales Diamond Indenter - Wilson 400 and Affri Testers
201HRC,HRA & HRD Scales Diamond Indenter - Newage Indentron and Indentec Testers
202HRN Scales Diamond Indenter - Newage Indentron and Indentec Testers
203HRA Scale - Carbide Test Diamond Indenter - Newage Indentron and Indentec Testers
205HRC,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
304HRC,HRA,&HRD Scales - Taper Style Diamond Indenter - Newage Versitron and Ernst Testers
305 HRN Scales - Taper Style Diamond Indenter - Newage Versitron and Ernst Testers
401HRC,HRA & HRD Scales - Wilson Mobile and Emco Portable Testers
402HRC,HRA & HRD Scales - Reihle, and Clark Portable Testers
403HRC, HRA, & HRD Scales - Ames Portable Tester

Calibration-Grade Rockwell Indenters : ASTM E-18 Class A

Part #:Description:
101-AHRC,HRA & HRD Scales Diamond Indenter - A Grade
102-A HRN Scale Diamond Indenter - A Grade
105-AHRC,HRA,HRD & HRN Scales Diamond Indenter - A Grade

Rockwell Indenters for Special Applications

Part #:Description:
1777-CHRC Scale Diamond Indenter
1751-CHRC Scale Diamond Indenter
1778-CHRC Scale Diamond Indenter
1357-NHRN Scale Diamond Indenter
1435-NHRN Scale Diamond Indenter
1702-NHRN Scale Diamond Indenter
1794-NHRN Scale Diamond Indenter
1795-NHRN Scale Diamond Indenter
1796-NHRN Scale Diamond Indenter
1478-AHRA Scale Diamond Indenter
1480-AHRA Scale Diamond Indenter
1780-AHRA Scale Diamond Indenter

Rockwell Ball Penetrators

Part #:Description:
6011/16” Ball Penetrator
6021/8” Ball Penetrator
6031/4” Ball Penetrator
6041/2” Ball Penetrator
6091/16” Carbide Ball Penetrator
6101/8” Carbide Ball Penetrator
6111/4” Carbide Ball Penetrator
6121/2” Carbide Ball Penetrator
6161/16” Ball Penetrator - Versitron Style
6171/8” Ball Penetrator - Versitron Style
6181/16” Ball Penetrator- Indentron Style
6191/8” 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.