Ace Hardware has a 40-Piece DeWalt Impact Ready Screwdriver Bit Set (Black Oxide) for $14.99 when you sign up for Aces Rewards (-$5.00). Signing up is free.
Ace Rewards Sign Up
• Choose store pick-up to avoid shipping costs (if applicable).
https://www.acehardware
Sears also has this on sale for $15.00
https://www.searsoutlet