Special indicator backs
Backs with adjustable mounting bracket
For use with gages and gaging fixtures where an adjustable indicator
mounting is required. A dovetail with rack and pinion adjustment
provide 1 1/8�?28mm) indicator travel. A 1/8″hex wrench is used to
adjust and lock the indicator in final position. The bracket has two
counterbored mounting holes (for 1/4�?socket head screws), and the
back has four screw holes so the indicator back can be rotated.
Universal Backs
Featuring a universal ball joint attached to the end of a gooseneck
shank, these attachments make it possible to position an AGD
indicator can be rotated 360°and angularly up to 90°and locked in
the desired position by tightening a single knurlled nut. Straight
shank is 3/8�?9.5mm)in diameter.
Magnetic Backs
These magnetic backs provide a quick and easy means of attaching any
Tresna AGD indicator to flat, ferrous metal surface. A real
timesaver for machine, jig and fixture set up. Requires no clamps,
rods or snugs. A special 5/16�?24 threaded stud back is provided to
replace the standard lug back. The powerful, permanent magnet is
then attached to the threaded stud. Anti-magnetic indicators are not
required.