Execution: Dimensions according to DIN EN ISO 463, edition June 2006. Precision measuring gauges with metal housing, clamping shaft diameter 8 mm h6, hardened and ground. Dial can be rotated via the outer ring to set the pointer to zero. Central hand for 1/100 mm reading, smaller hand of the secondary scale for 1 mm reading. Both hands are arranged concentrically for particularly clear reading. Outer ring with 2 adjustable tolerance marks.