Woot offers IRWIN Speedbor Max Drill Bit Set, 8-Piece (IWAX128PC) for $13.99 (orig. $39.99). Free shipping for Prime Members.

Product Description:
The newly redesigned IRWIN Accessory Storage Cases are visibly better. They have clear lids for easy viewing of content and are stackable for easy traveling and storage. They feature a patented bit-bar design for easy bit removal and customizable assortments of the wood drill bit set.The new SPEEDBOR Spade Bits now last 2 times longer and cut 2 times faster on average vs IRWIN SPEEDBOR prior generation in 1-3/8-inch Oak. The drill bit sets are designed with chamfered cutting edges for durability and feature a patented Blue-Groove design for chip removal.

• Visible clear lid of the drill bit set are desgined for easy viewing of contents
• Stackable - for convenient travel and storage of the drill bits for wood
• Accessible drill bits for wood are made for customizable kits
• Drills holes 2 times faster
• Lasts 2 times longer
• Chamfered cutting edges for increased durability
• Patented Blue Groove parabolic scoop for faster chip removal
• Designed for impact drivers with 1/4-inch impact rated shank