at first I was skeptical, finally is in the description, is sheet metal parts and not to cast aluminum. Now that I have made an oil change at 3 different cars, I am totally convinced of the set.
The caps are precisely, only when the caps are where 2 dimensions are given, the small degree has big game. I do not know how something affects at a fixed dental oil filter, but with the other caps can turn up this easily.
In addition, the caps are short, that is to get in the cramped conditions of the engine compartment help many.
