KLEIN TOOLS 32534 Screwdriver/Nutdriver 8-3/4 in L

10-Fold Screwdriver/Nut Driver Schrader® Valve Core Tool. Great for HVAC and other industrial applications. Includes 5/16'' 1/4'' nut drivers, #1 #2 Phillips, 1/4'' 3/16'' slotted, Shrader® valve core removal/installation-extractor, and #1 and #2 square-recess. Driver arms fold conveniently into the body for easy storage. Unfold each driver arm up to a full 180 degrees for straight on driving power, or at 90 degrees for extra leverage on stubbon fasteners. The quick release button easily unlocks a fully extended driver arm. Each arm contains four interchangeable bit-styles and two nut drivers. Fits easily into your pocket.