BoxoUSA double ring wrenches include individual metric 12-point box end wrenches with a 75 degree deep offset in eight sizes from 6-7mm to 20-22mm. Each has positive grip broaching, a mirror chrome finish and the size marked on both ends and sides. The collection also includes extra long ratcheting box spanner sets in 12-piece metric (250mm to 421mm long) and 8-piece SAE, both in 1/2 drawer EVA foam.