Weak metal bent and broke my castle nut - UTG Pro Mini AR15 Steel Armorers Wrench

It is heavy enough for me to have thought this was a solid tool. I was wrong. The end that goes onto castle nuts doesn't quite grab them good enough resulting in this thing twisting. After it twists a little bit, you're putting uneven torque on the castle nut and this easily broke a castle nut. It is easy enough to bend back, but easy enough to get bent out of shape again. I would avoid this like the plague and get proper tools that wont damage your rifle.