On Sat, 30 Aug 2014 17:06:52 -0500, Leon wrote:

My next jig was the Kreg shelf pin hole jig. I have drilled countless
holes with this tool too but it really is not built for production. The
jig allows you to drill about 6 holes and then you have re-index and
drill 5 more, repeat, repeat, repeat..... I spent as much time
repositioning the jig as drilling the holes. I did however like the
standard non spring loaded drill bit.

I just did 784 holes for some bookcases using the Kreg. Agreed, the
repositioning is a pain, but I was happy that none of the 28 shelves
rocked at all. Maybe disbelief is a better word than happy :-).