Extremely tough alloys and advanced design make these Hercules impact bits outlast the others. Packed in a jobsite-tough case with easy-access bit storage, these drivers are capable of driving over 1500 screws before showing signs of wear – up to 10x life! This insert bit set comes with the Hercules magnetic drive guide and bit holder for fast bit changes without dropping or wobbling. Exclusive BitFit™ design gives you the best fit in fasteners to reduce stripping. Advanced TorqPoint™ design for max shock absorbing, making these the preferred bits for use with Hercules drill/drivers and impact drivers.