S/Driver Rd 5/16″ x 6″ Vaco

Klein Tools BD156, 5/16 Inch Flat Head Screwdriver, Keystone Tip 6 Inch.
Oversized handle is 35 percent larger than comparable screwdriver handles. Delivers up to 50 percent extra power to perform tough jobs with minimum effort. Tough amber, smooth Comfordome handle fits in the palm of the hand comfortably. Chrome plated shaft helps prevent corrosion. Internal flanges provide solid, twist-resistant shaft anchor.