Micrometer Gage: With flat anvil/spindle pair for general purpose measuring; microfine graduations and carbide-tipped measuring faces; 0.0001" graduation and ± 0.0003" accuracy for precise readings Accurate Measurements: Anvil and spindle hardened and precision ground with microlap finish on tips; 0.256-inch diameter of measuring faces, 0.00003" flatness on 6-7" micrometers for precise measurements Easy to Use: Quick, easy zero adjustment on the sleeve and positive lever locking clamp; ratchet stop applies constant force for repeatability between users Satin Chrome Finish: Vernier scale with hammertone blue baked-enamel frame with heat-insulated frames; the finishing on the thimble and sleeve helps reduce rust and glare, while the lapped spindle thread provides smooth movement, extending product life Set Includes: An outside micrometer with a vernier scale of 0.0001", a wrench, and a fitted caseview less