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): 0-3"  Graduations (in): .001"  Resolution (in): .001"  Micrometer Sizes: 1,2,3 In  Micrometers Included: 3  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 In  Case Type: Wood Case