Range: 600mm (24") / Resolution 0.01mm (0.0005") / Accuracy: 0.05mm (0.0025") mm-inch conversion / Zero setting at any point / Incremental or Absolute measurements Preset Function / Absolute origin / Fine adjustment mechanism / Locking Screw / Hardened Stainless Steel Internal measurement nibs / Certificate of conformity, Case & Batteries supplied Supplied by Digital Micrometers Ltd with 12 months warranty and support, Manufacturer: Digital Micrometers Ltd