Lowes offers DeWalt FlexTorq 26-Piece 1/4" Impact Driver Bit Set for $13.98 (reg $19.98). Free shipping on orders over $35.

Product Description:
FLEXTORQ® bits are engineered for durability. This latest generation from DEWALT redefines fitment and performance with overhauled tip geometries. DEWALT’s newest FLEXTORQ® PH2 bits deliver 100% more screws per bit (T25 is a trademark of Acument Intellectual Properties, LLC, used without permission to indicate compatibility).The redesigned tip geometries for use with T20 to T40‡ size fasteners deliver from 2X up to 5X superior fit, on average, versus previous generation of DEWALT® FlexTorq® screwdriving T25 bits. Every FLEXTORQ® bit features a FLEXTORQ® Zone designed to absorb impact for up to 200X longer life, on average, versus standard DEWALT® screwdriving bits.

• FLEXTORQ® ZONE FOR UP TO 200X LONGER LIFE (Select Sizes): Engineered with a FLEXTORQ® Zone designed to absorb impact, resist wear, and deliver longer life in tough applications
• FROM 2X to 5X SUPERIOR FIT: Redesigned tip geometries for use with T20 to T40‡ size fasteners provide superior fitment for ease of use and one-handed driving
• MORE SCREWS, LESS TIP WEAR: Overhauled Phillips #2 geometry delivers 100% more screws per bit†
• IMPACT READY™: 1/4-In hex shank for use in drills and impact drivers
• TOUGHCASE+™ STORAGE CASE: Storage case integrates into the TOUGHCASE+™ System for custom bit storage solutions (additional cases sold separately)