I have een searching in vain to find some information on making "holsters," for lack of a better term, to stor my cordless drills. I remember seeing this in a magazine but I can not find the article. What I am trying to do is use pvc with a slot cut in it and attach it to the underside of a shelf. The slot lets you slide your drill in to the pvc pipe. I am trying to find the size of pipe that was used and how it was attached to the shelf. Any help is appreciated.