Klein Tools has designed a set of Impact Power Bits for the professional electrician. All the bits are made of high-impact rated S2 steel and color coded for easy identification. The nut drivers have strong magnets, and are also designed longer so they reach easily into junction boxes. Minimal chamfering on the nut drivers' hex pockets increases surface contact between the nut and driver for better performance. You can find these drivers along with additional size and tip bits in our Pro Impact Power Bit Set with Case (Cat. No. 32799).Features Longer pro impact power bits are designed to reach easily into boxes and panels Includes 3, 3/8-Inch (9.5 mm) power nut drivers Bits are color coded with the ASME standard for easy identification Impact Rated; Strong Magnet S2 Impact-Rated Steel for maximum life Standard 1/4-Inch (6.4 mm) hex shank Can be found along other sizes and tips in the Pro Impact Power Bit Set (Cat. No. 32799) Hex pockets have minimal chamfering increasing surface contact between the nut and driver Warnings Do NOT use to pry or chisel Read and follow safety instructions in power tool owner's manual Always wear eye protection Bit Type: 3/8 in Hex Nut Driver Shank Type: 1/4 in Hex Overall Length: 2.65 in (6.7 cm) Diameter: 0.56 in (1.4 cm) Weight: 0.0200 lbs Material: S2 Impact-Rated Steel Finish: Minimal chamfering hex pockets Country of Origin: Taiwan DownloadsVideo DownloadSpec Sheet