• 4-in-1 Double ended impact socket, 17 x 21, 19 x 22mm with 75mm 1/2"Sq drive impact extension bar. • One socket can be used to replace four different sockets. • Can safely be used with an impact wrench, air ratchet, breaker bar or torque wrench. • Constructed from Chrome Vanadium Steel (CRV) for maximum strength, ideal for the professional.
