Klein Tools designed a set of impact driver bits for the professional tradesman and do-it-yourself enthusiasts. All of the bits are made of high-impact rated S2 steel. The 3-Inch bit holder and 1/4-Inch and 5/16-Inch nut drivers have strong magnets to easily hold bits and fasteners in place. Minimal chamfering on the nut driver hex pockets increases surface contact between the nut and driver for better performance. All 35 pieces fit in a durable, impact-resistant case featuring steel hinges, a stay-shut latch and modular stackability with other cases of similar design.Features Hex pockets have minimal chamfering increasing surface contact between the nut and driver Extended length 2-Inch #2 Phillips and #2 square bits to easily access hard to reach fasteners Spring Loaded Clip, Modular Case Variety of Phillips, slotted, square and TORX® bits to drive the most common fasteners on the job Compact, modular storage system is compatible with MODbox™ and stackable with other cases of similar design Precision-milled bit tips deliver a better fit and less wear on the fastener S2 Impact-Rated Steel Bit Set built for heavy-duty applications Set includes a 3-Inch bit extension with strong magnet to keep bits in place 1/4-Inch and 5/16-Inch magnetic power nut drivers Warnings Do NOT use to pry or chisel. NOT insulated. Will NOT protect against electrical shock. Always wear eye protection. Number of Pieces: 34 Material: S2 Tool Steel Slotted Bits: 3/16 in, 1/4 in, 5/16 in Phillips Bits: #1, #2, #3 Square Bits: #1, #2, #3 TORX Bits: T15, T20, T25, T27, T30 Nut Driver Sizes: 1/4 in, 5/16 in Other Bits: 3/8 in Square Impact Adapter Magnetic: Yes Overall Length: 7 in Overall Width: 3.75 in Overall Height: 1.75 in Height: 1.5 in Depth: 7 in Weight: 1 lb Type: Impact Bit Set For Use With: Impact Drivers DownloadsSpec Sheet