Removable shaft adjusts within 4-Inch to 8-Inch (10-20 cm) range for numerous length combinations Blades feature #2 Phillips and 1/4-Inch Slotted tip for multiple screwdrivers in one tool Proprietary system securely holds blade - as durable as a traditional Klein fixed blade screwdriver Press down to extend or lengthen the shaft; push up to retract or shorten the shaft Made in USA Cushion-Grip handle for maximum comfort and torque U.S. Pat. 6,561,523