Mahr Digital Micrometer Micromar 40 EWRi-L 4157121Micromar 40 EWRi L Art. no. 4157121 Digital Micrometer Micromar 40 EWRi L Avoiding workpiece damage: The non rotating spindle has a touching touch, which prevents scratch marks on sensitive and finely machined surfaces Ideal for measuring thin metal foils without twisting and bending them Thread flank measurement by using thread wires: Both wire holders always remain in the engaged position with the non rotating spindle IP protection category: IP