So I was working on building a camber gauge to adjust out what's been wearing my front tires. I was working off the general principals of the angle iron gauge youtube model. I had 5/16 and 7/16 bar stock laying around and got 80% done, drilled and tapped holes, made a slot to adjust, found 1/4-20 bolts the right length, factoring how to make it work on 14 15 and maybe even 16 inch wheels and then it occurred to me- What this thing needs is a spring loaded sliding adjustment... ...maybe like a woodworking bar clamp. I have several in different styles so I hunted some down to see if the mechanism could be adapted. Most have a rounded edge and are not suitable without welding or bolting a tray on to support an angle gauge. Then I spotted a cheap HF clamp. The bar had a completely rectangular cross section. Small but big enough for the magnetic base on the angle gauge to adhere to. Then I examined the ends. I found that the fixed end could be removed and placed backwards on the other end, changing the gripping surfaces from internal to external. Boom. Done! less than 5 minutes.