Dewalt Folding Hex Key Set DEWALT has a well-earned reputation for designing and manufacturing many of the worlds most reliable and best-performing professional-grade power tools. And every product is forged with DEWALTs unwavering commitment to producing tools and accessories that can withstand harsh jobsite conditions and meet the unyielding day-to-day demands of professional contractors. And now, DEWALT has applied that same no-nonsense, Guaranteed tough philosophy to its new line of heavy-duty hand tools. Designed t Patented locking feature protects fingers and improves productivity Solid steel side plate for added strength Keys lock into 3 positions (90, 135, 180 degrees) helps maneuver into awkward spaces and reduce slipping during use Durable and ergonomic design