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657T Starrett Magnetic Base with Flex O-Post Assembly
 
657T Starrett Magnetic Base with Flex O-Post Assembly
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    657T
    Starrett Flex-O-Post Indicator Holder with magnetic base

    For use with all Starrett Test, Back-Plunger, AGD, Dial, and Miniature
    Dial Indicators . Also accommodates similar indicators of other
    manufacturers . The flexible post is an assembly of short tubular steel
    sections and precision ball joints, linked by an internal steel cable . It
    can be adjusted to any position and locked by turning a lever near the
    magnetic base . This makes it possible to use indicators in awkward
    places that are hard to reach with conventional holding devices .
    Assembled to the magnetic base, the post has a vertical reach of
    approximately 15" (380mm) and a horizontal reach of approximately
    10" (250mm) . The indicator snug on the end of the post can be rotated
    through 360º and locked in any position .
    The base has three precision ground magnetic contact surfaces . Grips
    horizontally, vertically or upside down . V-step holds base to arbors,
    shafts, chucks .
    The 657W Attachment allows fine adjustments to be made, operated
    by turning the fine-adjusting thumb screw (with post locked in rigid
    position) to zero, then set the indicator .

    • A . Gage Rod 3/8" x 3" (9 .5mm x 75mm) has 5/16, 1/4 and 7/32"
      (8, 6 .3, and 5 .5mm) steps . Holds 708, 709, 711 and 811 Dial Test
      Indicators by body clamp . See attachment specifications for the
      appropriate indicator body clamp on previous pages .
    • B . Adjusting Take-up Sleeve with locking nut for maintaining proper
      degree of post rigidity .
    • C . Post Snug has 3/8" (9 .5mm) hole (which will also grip AGD dial
      indicators by the stem) .
    • D . Flex-O-Post 657U .
      E . Locking Lever tightens internal steel cable to make post rigid and
      lock it in position .
    • F . Magnetic Base 657P has push-button on/off switch .
    657T Flex-O-Post Indicator Holders with magnetic base - Complete Assemblies
    Catalog No
    Description
    657T
    Magnetic Base with Flex-O-Post Assembly
    657TW
    Magnetic Base with Flex-O-Post Assembly and Fine-Adjustment Attachment
    657T Flex-O-Post Indicator Holders with magnetic base - Individual Components
    Catalog No
    Photo Key
    Description
    657P
    F
    Magnetic Base Only
    657U
    (A, B, C, D, E)
    Flex-O-Post with Locking Lever and Snug Only
    657W
    G
    Fine-Adjustment Attachment
    PT17850
    A
    Indicator Holding Rod