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The Klein Tools Hollow Round Nut Driver 5/16 in is the ultimate tool for professional and DIY users who require precision fastening and unfastening of bolts, nuts, or screws. Featuring a hollow round shank, this nut driver allows access to tighten or loosen nuts and bolts from either end, offering more clearance and versatility than other conventional nut drivers. With a 5/16 inch tip size, it is perfect for numerous applications across various industries such as electronics, automotive, hardware maintenance, and construction. The ergonomic grip style ensures maximum comfort during use, minimizing hand fatigue even during prolonged periods of work. Its 1 -inch shank length allows for easier handling and application in tight spaces. Trust Klein Tools to deliver quality tools that meet professional demands!