The Titan 40144 1″ Drive x 4″ Impact Extension bar is a heavy-duty tool designed for use with impact wrenches. It features a 1″ drive size and a 4″ extension length, providing additional reach and flexibility in accessing hard-to-reach fasteners. The impact extension bar is constructed to withstand the high torque and vibrations produced by impact tools, making it ideal for automotive and industrial applications. Features: 1″ drive size for compatibility with impact wrenches 4″ extension length for increased reach Durable construction to withstand high torque and vibrations Designed for use in automotive and industrial applications Facilitates easy installation and removal of fasteners Specifications: Brand: Titan Model: 40144 Drive Size: 1″ Extension Length: 4″