1/2" Drive 6 Piece Adapter/Extension SetFeatures and Benefits - Made of high quality steel (chrome-molybdenum) - All Items use the Friction Ball Retainer - Engineered specifically for use with impact tools, using the most up to date industrial specifications - Packaged in a molded storage case - Lifetime Warranty on all items except the reducing adapter (Item #2228A) This 1/2" drive adapter and extension set improves the strength of the socket, transfers increased torque to the fastener and allows easier access to tight areas. Each adapter and extension is thoroughly made with the correct balance of strength and durability and is tested to the highest specifications to deliver outstanding performance at the most competitive cost. Set contains the following sizes: 1/2" Female x 3/8" Male Adapter, 1/2" Female x 3/4" Male Adapter, 1/2" x 1/2" Universal Joint, 3", 5" and 7" Extensions.