Bahco dds14 deep impact socket set of 12in deep impact sockets that have a black finish and are made from high performance alloy steel to be used with machines for maximum safety use clamping springs conforms to din 3121 g 125 iso 1174 standards comes supplied in a case with 2 component handles and a 1 piece removable three section plastic box sizes 10 11 12 13 14 15 16 17 18 19 21 22 24 and 27mm