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SKU: 1/2BallPen-Rockwell ASTM E18-08a Class B Working Grade Carbide Ball Penetrator Manufactured for use in most hardness testers, ie Wilson, Clark, Buehler, United, Mitutoyo, etc... Rockwell Hardness Testing calibration procedures mandate the use of a Carbide Ball that is verified for geometrical and performance standards, per ASTM E18.
Brystar Tools | 222 AC Smith Road, Roxobel, NC 27872 Tel: (252) 344-2309 | Fax: (252) 344-2313 | Email: service@brystartools.com
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