With enamelled frame and tungsten carbide tipped anvils and fine adjustment ratchet. Supplied in plastic fitted bench case. | | Contents: | – 5500K | 0 – 25mm, 25 – 50mm, | 50 – 75mm and 75 – 100mm external micrometers, | 25mm, 50mm and 75mm micrometer setting standards, | two micrometer setting spanners. | | – 6600K | 0 – 1″, 1 – 2″, 2 – 3″ and 3 – 4″ external micrometers, | 1″, 2″ and 3″ micrometer setting standards, | two micrometer setting spanners.