FEATURES The most popular precision micrometers used by skilled workmen worldwide Accurate, rugged, and easy to use All sets come with attractive, protective case, which keep micrometers and standards together, readily accessible Hard and stable one-piece friction thimble permits one-hand operation of micrometer and uniform contact pressure Balanced frame and thimble design ensure easy handling Gracefully designed tapered frame for use in narrow slots and tight places Micro-lapped measuring faces Starrett No-glare satin chrome finish on thimble and sleeve minimizes annoying surface glare under bright lights and resists rust Anvils sized at .250" (6.35mm) diameter. SPECIFICATIONS Made in America: Yes Micrometer Type: Outside Micrometer Set Set Range (in): 0-12" Graduations (in): .0001" Resolution (in): .0001" Micrometer Sizes: 1,2,3,4,5,6,7,8,9,10,11,12 In Micrometers Included: 12 Anvil/Spindle Material: Carbide Anvil Type: Flat Spindle Type: Flat Lock Nut Type: Knurled Ring Type Thimble Type: Ratchet Thimble Graduations: English Standards Included: 1,2,3,4,5,6,7,8,9,10,11 In Case Type: Wood Case