I got this cordless drill for christmas few years back. A 24! volt black and decker. 24! No one I have seen makes more than 18. Even Black&Decker. I think it must have been a limited run before they redesigned or something. This thing can run for days of HARD use on one charge. I guess they decided they were not going to make any money on replacement batteries and switched back to makeing them 12, 14 or 18 volts. They annoying this is that the battery is ever so slowly starting to fade and I will never be able to find a replacement one.
SirKit does have quite a few other tools from other companies. We like the Dewalt big ole nail gun we call Glamdring. He found a great screw gun on eBay once. Our #2 son called it the 'screw you' gun, and it's been known by that name ever since. It will be great for attaching sublfoor, and roof sheathing. Heavy as heck, but since you're not lifting it much, it doesn't matter.