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. Features & Benefits: • 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 Specifications: Model No AK5514 Brand: Premier Contents: Extension Bars; 75, 150, 250mm, Adaptors; 1/2"(F) x 3/8"(M), 1/2"(F) x 3/4"(M), Universal Joint Drive: 1/2"Sq Nett Weight: 1.42kg