657A Starrett Magnetic Base Indicator Holder with swivel post assembly
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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
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
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
||Magnetic Base with Swivel Post Assembly
||Magnetic Base Only
||Swivel Post Assembly Only