Description Extra Length: While standard bits are 25 mm long, every bit in this set is 30 mm long to improve your access to recessed fasteners.Corrosion Resistant: The bits are made of S2 steel with a zinc-phosphate coating that resists corrosion.Clear Markings: The tip size and Tekton âTâ is clearly stamped onto every bit.Rubberized Bit Rails: The flexible rails securely grip the bits so they canât fall out, while also making it easy to remove any bit one-handed.Full-Sized, Comfortable DriverMagnetic Bit Receiver: The bits are held onto the end of the driver by a magnet thatâs friction-fit within the receiver so that it canât fall out.Three-Sided Geometry for Torque: The handleâs three-sided geometry provides the leverage you need to generate high turning force by hand.Rounded Areas for Quick Spinning: Round sections at the front and back ends of the handle create an ideal shape for quickly spinning long fasteners.Durable, Nonslip Handle: The overmolded grip is permanently bonded to the handle and won't degrade or become sticky over time.Compact Carrying Case: Contoured EVA Foam, Durable 3-Layered Material, Zipper Closure37 Piece Set