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