Shop Tip #169
© Frank Ford 2006; Photo by FF

I use a keyless chuck on my drill press, and I need to be sure not to run it in reverse or the chuck will release. I drilled and tapped a 1/4-20 socket head cap screw into the face plate of the switch. Now, to reverse the motor I must take out the screw - making it unlikely I'll have a reversing accident.  If you look at the switch, you'll notice that the reverse position is to the right, which is the forward direction on all my other tools - a second reason for needing that little safety.