High torque This screwdriver extension tool delivers a torque range of 16.8 kg to 33.6 kg, allowing you to tackle stubborn, rusted or corroded screws with ease. Designed for heavy duty and everyday repairs, it works three times faster than conventional manual ratchets. Slim neck design With an ultra-thin profile of only 144.8 cm wide and a length of 43 cm, this lightweight tool reaches tight spaces where standard tools cannot. Its design also protects your ankles during automotive and plumbing repairs. 3-second quick-change system Easily switch between 3/8, 1/2 and 1/4 drive heads in just three seconds, without additional tools. This feature is especially valuable for DIYers who need fast adjustments in challenging environments. Construction and durability Made from high-quality chrome steel with a hardened coating, this tool is built to withstand heavy use without loss. It has been stress tested for 200 hours and features a sealed gearbox for smooth operation even in dusty conditions.