ST444.1BXRLZ Outside Micrometer Set 72531

The Starrett ST444.1 Outside Micrometer Set includes 1", 2", 3" and 4" micrometers, three standards, adjusting wrench, in case. A popular precision micrometers used by skilled workmen worldwide. This model features 0-4" Measuring Range. Smooth friction thimble for uniform pressure, the combination ratchet and speeder for uniform pressure and quicker adjustment, or a plain micrometer that depends on your own “feel”. Recommended for mechanics, automotive service and machine shops, toolrooms, inspection departments and wherever gaging involves a wide range of measurements. SET, 0-4", 0.0001" Grad, Carbide Faces, Ratchet Stop, Lock Nut involves a wide range of measurements.

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  • 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


  • 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

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