Reflected light calibration slide with circle shapes and scales for calibrating Brinell hardness testers. The PS26 which has a series of circles, to represent the ball indentation shape, of varying size and x-y scales. It is a precision marked chrome deposition image on a glass slide. Each of the markings on the slide is clearly identified with its size. This product is supplied in a polished wooden case.
PS26 Pattern Detail: Circles: (Diameter, mm's) 5.0, 2.5, 1.0, 0.7, 0.3
Scales: Horizontal and vertical, 2 mm in 0.1 mm divisions