The special impact socket inserts from Adler are designed for use with pneumatic tools that operate under very challenging conditions and with varying loads. The sockets are made from chrome-molybdenum steel (Cr-Mo). Cr-Mo steel is a unique alloyed steel with double the tensile strength of regular carbon steel and triple the yield strength. Adler sockets maintain their nominal size for a long time and do not break under impact. They are particularly recommended for professional tire and automotive services. Our range includes sets of short, long, short and long power socket inserts, sets for aluminum rims, and individual socket inserts in sizes 1/2" and 3/4". Long 1/2-inch impact socket inserts for aluminum rims are available separately. Available sizes are: 17 and 19 mm. Individual 1/2-inch socket inserts of any type are also available on our brand hangers.