Bosch Custom Case 48 Piece 1 4 in Impact Driver Bit Set End Posts ) 9 in Manufacturer Warranty ) 9 in Manufacturer Warranty 2 years Certifications and Listings ETL Certified This matte finish complements various home and office styles while being easy to maintain Sub Brand Custom Case Brand Model Compatibility Fits most drill drivers Bit Length Set Shank Size 1 4 in Shank Type Hex Material Black oxide coated HSS Head Type Set Adaptor Included Yes Set Individual Set Double Ended No Warranty None Case Type Hard Package Quantity 48 CA Residents: Prop 65 Warning(s) No Number of Pieces 48 Impact Tough™ bit design – provides 10X life over standard impact bits Xtended Torsion Zone – helps to absorb high torque of new impact drivers Tilt in tilt out case mechanism – allows easier access to bits Customized storage configuration – provides efficiency