I have a vintage Mitutoyo 12” dial caliper that came in a wooden box. My father passed down his 6” Mitutoyo dial caliper that he used regularly as a mechanical engineer. The issue with the 12” caliper is that the small shim tool that is used to adjust the location of the dial only allows the dial to be set either at 0 or 25 or 50 or 75. 0 is 2 thou to the left of 12 o’clock. On the 6 inch Mitutoyo, adjusting the 0 to be at 12 o’clock was easy. This 12” will allow you to place the needle anywhere you want with the same resetting process when the caliper is closed, but as soon as you use the roller to open the jaws, it jumps to the closest 25 thou increment. Any thoughts on getting this to adjust to 0 at 12 o’clock. Thanks in advance.