This dual reading digital external micrometer has a range of 0-25mm The Draper 46599 is a dual reading digital external micrometer. This micrometer is expert Quality, with an enamelled frame, heat plates, satin chrome thimble and sleeve. Carbide tipped measuring anvils, lock and ratchet stop. Graduations 0.001mm and 0.0005\". Perfectly flat ends for accurate measurements. Supplied with SR44 battery. Features: Expert Quality, with an enamelled frame, heat plates, satin chrome thimble and sleeve Carbide tipped measuring anvils, lock and ratchet stop Graduations 0.001mm and 0.0005 Perfectly flat ends for accurate measurements Supplied with SR44 battery Specification: Range: 0-25mm