Reach that unreachable fastener in a flash with Powerbuilt socket extension bars. Just pop it onto your ratchet to add reach to your socket. Ideal for reaching spark plugs and distant nuts and bolts everywhere on your car or truck. Built using impact-rated chromoly steel, these stylish extension bars have knurled centers and grease rings for great no-slip grip. Precision fit to securely hold sockets and eliminate slop. Dependable Powerbuilt socket extension bars meet or exceed ANSI standards and have a lifetime warranty, all at affordable prices.