Extension Bar 3/4in Drive 200mm (8in)The Teng Tools Extension Bar 3 4in Drive 200mm (8in) is designed to provide extended reach when accessing nuts and bolts in difficult or recessed areas. Commonly referred to as an extender arm, this extension bar is ideal for automotive, mechanical and heavy duty applications where additional length is required. Manufactured from high quality chrome vanadium steel for superior strength and durability, it features a satin finish for added corrosion