Description The Dewalt impact ready nut driver set is easy to use. To ensure compatibility with your tool, this part has a 1/4 in hex shank. The overall length measures 2 in. Includes 1/4 in, 5/16 in, 3/8 in, 7/16 in, 1/2 in. Packaged 5 pieces per set.Advanced hardening process for maximum durabilityExtra strength magnets provide strong bit retentionImpact Ready accessories are designed for use with impact driversIndependently certified to meet applicable standardsPatented geometry reduces rounding of the hexFinish/Coating: Magnesium PhosphateHex Size: 1/4Magnetic Tip: YesMaterial: HSSMeasurement System: ImperialNumber of Pieces: 5Overall Length: 1-7/8Series: Impact ReadyShank Type: HexSize Range: 1/4 to 1/2Specifications: 1/4 in Hex ShankSuitable For Use With: Impact Driver and WrenchType: Imperial Magnetic, Magnetic