I am working on a project that is 20" X 28", has a grid marked out for drilling 106 holes, 15/16" by 5/32" deep. With my DP, I'll be able to reach about 52 of them leaving 54 that have to be drilled in a different matter. Here's where I need some insight and input. What or how would be the best approach in be able to maintain the precision depth and plumb of the remaining 54?
I've only come across one Plunge Drill made by Triton with no luck, as of now, as to where one could be purchased. I also came across a portable drill guide (Portable Drill Guide - Rockler Woodworking Tools) but unsure as to the stability of it.
I'm hoping that someone else has had a situation where you wanted to maintain precision bores on stock to large for the DP and developed or learned a trick to achieve this task.