The Powerbuilt 81 Piece Solutions Socket and Bit Set for Specialty and Damaged Fasteners offers sockets and bits to handle almost any fastener you come across. New, rusted, or damaged, SAE, metric, 6, 8, or 12-point, tamper-proof, if you can name it, chances are there's a tool in this set to turn it. Powerbuilt Zeon sockets are designed to grip and turn damaged and rounded nuts and bolts. The patented design will grip and turn hex heads up to 85% rounded. And they work just as well on new nuts and bolts. This set includes a full range of SAE and metric Zeon sockets. Powerbuilt universal fit spline sockets drive 6 different types of fasteners, including 6 and 12 point hex head, square, E-Torx, damaged, and spline style. You'll appreciate the precise fit and extreme durability of premium chrome vanadium steel construction. The set includes 11 metric spline sockets that will also drive the SAE equivalent fasteners nuts and bolts. Powerbuilt tamper-proof bits are just the ticket to drive almost every style of security fastener out there, including SAE and metric tamper-proof hex and Torx fasteners. They're constructed of hardened S2 steel for a precise fit and long life. Store all these useful tools in a heavy-duty tray for easy access and size identification.