659BZ Starrett Hvy-Duty Mag Base Indicator Holder with Upright post assemble and 25-131J Indicator

659BZ
Starrett Heavy-Duty Magnetic Base
Indicator Holder Furnished with AGD Dial
Indicator

This holder has a powerful magnetic base that
attaches to flat surfaces or on round work up to 5"
(125mm) in diameter by a form-ground involute
vee for accurate seating . It has approximately
twice the holding power of our 657 Magnetic
Base and has a rotary on/off switch .
A post snug with two 3/4" (19mm) gripping
holes positions the dial indicator at any height
and at any vertical angle and allows for 360º
rotation of the gage rod . After locking the gage
in place, the final indicator setting is made by
an independent fine adjustment at the back
end of the gage rod .
A second tapped hole (3/8"-24) in one side of
the base is for mounting the post horizontally
or adding another post for multiple inspection
work . The base is furnished with a threaded
adaptor, making it possible to use the 657
Series Magnetic Base post and attachments .
Base and snug have a black wrinkle finish
with precision ground contact surfaces .
Available with or without Starrett AGD Dial
Indicators: inch reading 25-131J ( .0005"
graduation) or millimeter reading 25-181J
(0 .01mm graduation) . Other mechanical AGD
indicators are available on request . Electronic
indicators, 2600 and 2700 Series, are also
available on request .
Both the upright post and the gage rod are
approximately 9 3/8" (238mm) long and 3/4"
(19mm) in diameter .