Sealey Premier Impact Adaptor & Extension Bar Set 1/2"Sq Drive 6pc Features: Chrome Vanadium steel extension bars and adaptors. Chrome Molybdenum steel universal joint. Phosphate finish for added corrosion resistance. Spring-ball socket retainer. Suitable for use with any impact tool. Supplied in storage case. Technical Details: • Chrome Vanadium steel extension bars and adaptors. • Chrome Molybdenum steel universal joint. • Phosphate finish for added corrosion resistance. • Suitable for use with any impact tool. • Spring-ball socket retainer. • Contents: Extension Bars; 75, 150, 250mm, Adaptors; 1/2"(F) x 3/8"(M), 1/2"(F) x 3/4"(M), Universal Joint. • Supplied in storage case. • Lifetime guarantee*. • Model No. AK5514 • Model No. AK5514 Additional Information: • One of a comprehensive range of Premier Hand Tools, suitable for daily professional use. • Chrome Vanadium steel extension bars and adaptors. • Chrome Molybdenum steel universal joint. • Phosphate finish for added corrosion