The Mahr 4335900 is a new Millimess 1002Z precision dial comparator gauge (Feinzeiger) with a balanced bidirectional dial face graduated at 0.00002 in (0.0005 mm), reading ±0.001 in (±0.025 mm) from center zero — confirmed directly from the dial face and box label visible in the photos. The full-jeweled movement (marked "FULL JEWELLED" on the dial) ensures low friction and long-term repeatability; measuring force is rated at 1 N, and overtravel is 0.11 in. The 1002Z series features a D-shaped (half-moon) black anodized housing with a dovetail/stem mounting shank, making it compatible with standard Mahr and universal comparator stands and indicator holders. Manufactured in the Czech Republic (confirmed from box label), this instrument is suited for precision comparative gauging, surface plate inspection, runout checking, and in-process gauging applications where sub-micron discrimination is required.