KLEIN TOOLS BD308 Screwdriver square shank keystone-tip 5/16x13-3/16"

Oversized handle is 35% larger than comparable screwdriver handles. Delivers up to 50% 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. Nickel-chrome, precision-forged and polished blades with black tips. Meets or exceeds applicable ASME/ANSI specifications.