Specially designed sockets from Adler, intended for use with pneumatic tools operating under very heavy conditions with varying loads. The sockets are made from chrome-molybdenum (Cr-Mo) steel. Cr-Mo steel is a unique steel alloy that has twice the tensile strength of regular steel and three times the bending strength. Adler sockets maintain their nominal dimensions for a long time and do not crack during impact work. They are highly recommended for professional tire services and automotive applications.