This DeWalt TOUGHGRIP screwdriver bit set is $5 off at Amazon. It's the best deal we could find by $9.

The 35 pieces come in a hard case, and the 1/4" hex shank works with both drills and impact drivers. Shipping is free for Prime members.

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Features 35-piece bit set in a hard case 1/4" hex shank fits impact drivers & drills Redesigned torsion zone for reduced bit breakage Select sizes up to 40x tougher Optimized bit geometries for a tight fit Weighs 1 lb.