I love my Makita and Dewalt cordless tools.
I've not had the opportunity to use Makita's customer service, because even after all the abuse I put them through, the tools keep working.
I've only had to use Dewalt's customer service because of failing chargers, the tools themselves have always worked as well. Dewalt's customer service has been fantastic to me. I've never had to exchange more than a few emails to get a free charger replacement, and they've never even bothered me with things like proof of purchase.
My favorite Dewalt tool for pinball right now is this: http://www.dewalt.com/products/power-tools/screwdrivers-and-screwguns/8v-max-gyroscopic-inline-screwdriver/dcf682n1
It's a gyroscopic electric screwdriver, so you push the button to turn it on, then it measures which direction you rotate the screwdriver to begin turning that direction, it also increases speed the more you turn.
