You're on the right track. Although a refractometer is the proper tool to test coolant, they are also kind of pricey.
Just use your squeeze bulb tester. Fill a cup with some coolant and cut it with water. If the reading changes (freeze point raises) it will tell you what you had to start with...
Cornwell
Snap-On
SK
Bonney
Klien
Vise Grip
Channellock
Craftsman
HF brand
In order of most to least...actually its getting close to a tie between Cornwell and SnapOn.
I have the 32 oz ball peen dead blow (in green). I use it to knock props off of tapered shafts all the time. (im a marine mechanic). Yeah it gets beat up a bit, but it does way more damage to what im hitting. The best part is theres no bounce back like with a regular ball peen hammer. I've had...
I have a couple "Crescent" brand crescent wrenches. I have had them for a few years. I work on boats and they have never given me a problem! My father installed handicap controls and lifts in vehicles for about 10 years. He passed them on to me. Worked well for him as well.