A Firing Pin Service Tool for the Witness

[DenStinett]

I good Friend of mine has a knack for designing Tools to make servicing our Pistols easier
He's putting the final touches on a Tool to help removing and reinstalling the Witness Firing Pin and its Stop without launching them across the Shop
Trouble is, he (like myself) only has a Large Frame Pistol and has no way to know if his Tool will work on the Small Frame Slides
He needs the Dimensions below from your Small Frame, or the corresponding dimensions from your Small Frame Slide
Shown here with Large Frame Dimensions:


Here's a Prototype of his Tool:


Any info would be helpful