657A Starrett Magnetic Base Indicator Holder with swivel post assembly
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657A Starrett Magnetic Base Indicator Holder with swivel post assembly

Code: 657A

$218.63

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Product Description

•••••

657A
Starrett Magnetic Base Indicator Holder
with swivel post assembly


The swivel post assembly on these holders provides universal
adjustment in both horizontal and vertical planes . Available with inch or
millimeter Starrett Dial Test or Back-Plunger Indicators, they save time
in shop set-up and other inspection jobs .
For use with all Starrett Test, Back-Plunger, AGD, Dial and Miniature-
Dial Indicators . Also accommodates similar indicators of other
manufacturers .
Powerful, permanent magnetic base holds firmly to steel or iron
surfaces – horizontally, vertically, upside-down . Push-button turns
magnetic force on or off for quick, one-hand set-up and take-down .
V-step adapts base to horizontal or vertical arbors and chucks . There is
an extra 1/4-20 NC tapped hole in side of base for indicator mounting
post . Three precision ground magnetic contact surfaces (plus V-step) .
Black wrinkle finish on non-working surfaces .


Magnetic Base Assembly Features:

  • A . 657P Magnetic Base is 1-15/16" x 1-5/8" x 1-7/8" (50 x 40 x
    48mm) deep .
  • B . Swivel Cap Slot permits 90º post travel to horizontal position .
  • C . Post rotates 360º .
  • D . 657F Indicator Swivel Post Assembly is 6-1/2" (165mm) high
    (less threaded end) . Assembly consists of items B, C, E, F, G .
  • E . Fine-Adjusting Screw . Turn to zero set indicator .
  • F . Upper arm is 2" (50mm) long with a 5/16" (8 mm) diameter and
    swings more than 180º; friction joint holds it in position .
  • G . 7/32" (5 .5mm) diameter step, 1/2" (13 mm) long .

  • 657 Series Sets
    These sets have been put together for your
    ordering convenience, but you can mix and
    match other Starrett test or back-plunger
    indicators and attachments with the 657A
    Magnetic Base and Swivel Post Assembly to
    suit your needs .
657A Magnetic Base Indicator Holder - Individual Components
Catalog No Description
657A Magnetic Base with Swivel Post Assembly
657P Magnetic Base Only
657F Swivel Post Assembly Only

 

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