Tekton Locking Extensions feature an easy-to-use locking mechanism. Push sockets or accessories onto the extension drive tang to lock them on, and pull down on the collar to release them. The extensions are made from 6140 chromium-vanadium steel with a 8660 nickel-chromium-molybdenum collar, and are chrome-plated for corrosion resistance. Deep knurling provides grip for turning fasteners, and grooves provide grip for attaching and removing sockets and accessories. Features: • Easy Engage – Push sockets or accessories onto the extension drive tang to lock them on • Locking Mechanism – Pull down on the extension collar to release sockets or accessories from the locked position • Knurled Grips – Deep knurling provides grip for turning fasteners, and grooves provide grip for attaching and removing sockets and accessories • Strong 6140 and 8660 Steel – Made from 6140 chromium-vanadium steel with a 8660 nickel-chromium-molybdenum collar • Chrome-Plated – Extensions can be easily wiped clean and are resistant to corrosion
