The 14-in-1 HVAC Adjustable-Length Screwdriver features the most commonly used HVAC driver bits and nut drivers in one tool. Use as a screwdriver or as an impact driver attachment. Flip socket on end of blade has three positions for multiple functions. Great for tight spaces, impact driving and long reach applications. Features: Adjustable Screwdriver includes 1/4-Inch and 5/16-Inch nut drivers with 12 driver bits conveniently housed in the handle; Adjustable-length blade for use with an impact driver or Klein Tools Cat. No. 32303; Multi-function 1/4-Inch socket has both shallow (driver) and deep (bit holder) configurations for added versatility; Impact rated blade for use in an impact driver; Powerful Rare-Earth magnet securely holds bits and hex head fasteners; Includes the most commonly used HVAC bits and nut drivers all in one tool; Includes #0, #1, #2 Phillips, 1/8-Inch (3.2 mm), 3/16-Inch (4.8 mm) and 1/4-Inch (6.4 mm) Slotted, #2 Square, T10, T15 , #2 JIS Bit, Schrader Valve Insertion Bit, and Core Removal Bit; Spin cap for optimum control; Cushon-Grip handle for maximum comfort and torque; Great for various applications including tight spaces, impact driving and long reach; Adjustable Length Screwdriver, Shaft Removes to be Impact Driver Attachment, Flip Socket; Adjustable-length blade for use with an impact driver or Klein Tools Cat. No. 32303 or 32907; Cushion-Grip™ handle for maximum comfort and torque - Warnings: Always wear approved eye protection.; Do NOT use to pry or chisel.; Never use on or near live electrical circuits.; NOT insulated. Will NOT protect against electrical shock.