PS25 MKII CALIBRATION SLIDE FOR VICKERS AND ROCKWELL HARDNESS TESTERS,, , SERIAL NUMBERED, SUPPLIED IN WOODEN CASE, , WITH UKAS (INTERNATIONALLY TRACEABLE) CERTIFICATE OF CALIBRATION, , , , PS25 MKII PATTERN DETAIL DIAMONDS: (POINT TO POINT, MM?S) 0.5, 0.3, 0.2, 0.1. 0.05. 0.02, , SCALES: HORIZONTAL & VERTICAL, 2MM IN 0.1MM DIVISIONS, , ACCURACY (OVERALL) ±0.0015MM, , , , PATTERN: PS25/UKA, , ORDER CODE: 05B01025/UKA, , MAKE: PYSER-SGI LIMITED