FEATURES  Starrett quality at competitive price  Accurate, rugged, and easy to use  ratchet stop, lock nut, and standards included  Micro-lapped measuring faces  Starrett No-glare satin chrome finish on thimble and sleeve minimizes annoying surface glare under bright lights and resists rust  Attractive, protective case, which keep micrometers and standards together, readily accessible  Balanced frame and thimble design ensure easy handling  Ring-type knurled lock nut for quick and sure locking  SPECIFICATIONS  Micrometer Type: Outside Micrometer Set  Set Range (in): 0-4"  Graduations (in): .0001"  Resolution (in): .0001"  Micrometer Sizes: 1,2,3,4 In  Micrometers Included: 4  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 In  Case Type: Metal Case