• Dial stop only
• Hard stop only
• Or both

Calibration:
One of the beauties of this dial indicator system is that you can fine-tune or calibrate your head yourself.

Step 1: Set your protractor to 45 degrees and place the 45-degree table dop in the dop chuck.

Step 2: Using a fine, flat lap set table dop flat on lap surface.  Adjust hard stop and also the height adjustment on mast until the 45-degree table dop continually stops flat on lap. 

Step 3: Adjusting dial indicator.  Two options:

(a)  Factory preset method: With the hard stop already set at 45 degrees, loosen set screw in back of aluminum body and slide dial indicator all the way down, then slide it up until zero is at the 12 o'clock position, then retighten set screw but not too tight as to hinder dial indicator movement.

(b)  Good for fine tuning machine: Adjust bezel on indicator by turning clockwise or counter-clockwise.