Versatile 11-in-1 tool for the professional. Includes unique style bit for installation/removal of common TR-4 Schrader® valves and aggressive thread extractor tip for backing out broken cores. Great for HVAC and other industrial applications. Blast finish bit tips provide a firm hold and reduce cam out. Contains: 3/16 inch (5 mm) and 1/4 inch (6 mm) slotted, #1 and #2 phillips, 1/4 inch (6 mm), 5/16 inch (8 mm) and 3/8 inch (10 mm) nut driver, #1 and #2 square, core removal/installation, core extractor. Cushion-grip handle for greater torque and comfort.