Facom 1/2" Drive Long-Reach
Convex 6-point Socket Set - 17mm/19mm/21mm.
Impact socket...suitable for use with air tools.
Thin wall for better access.
Convex design contacts lug bolts and nuts on the flats rather
than points (see photo). Less chance of wheel lug damage. The
17mm fits most BMW. The 19mm size fits most Porsche, VW/Audi, BMW
X3/X5 and many Mercedes. The 21mm size is popular with Asian
imports.