Klein Tools 33803 ProFlex 42-Bit Impact Driver Bit Set with Modular Case, S2 Steel, Magnetic, Adjustable Screwdriver

IMPACT-RATED: Set includes 42 total bits and adjustable screwdriver | TORSION ZONE TECHNOLOGY: Torsional recoil system extends the life of the bit | CUSHION-GRIP HANDLE: Features quick-adjust push button for adjustable-length blade | MAGNETIC BIT HOLDER: Powerful magnet inside barrel to better retain bits and securely hold fasteners | MODbox ACCESSORY CASE: Stack cases with similar designs and is MODbox compatible | STORAGE TRAY: For loose fasteners and extra bits