I got the oil filter wrench a couple months ago. I bought it for use in the kitchen to use opening jar lids, for which it's the perfect shape. I'm getting to the age where arthritis in my thumbs is starting to really reduce my grip strength. I use a pair of ChannelLocks for smaller jars and...
Regarding the Milwaukee Bluetooth speaker:
Maybe these hanging strap things from HD (http://www.homedepot.com/p/Husky-24-in-Zinc-Plated-Steel-Hang-All-36287/204695688) would help you hang the radio, perhaps with a little bigger carabiner to hook on to the side handles. Either that or some 1/2"...