Vermont American Black Max 6-Piece 6" Spade and 3-Piece 4" Stubby Spade Bit Set Includes Set 14482 - Six 6" Length Black Oxide Spade Bits: 3/8", 1/2", 5/8", 3/4", 7/8", 1" Includes Set 14494 - Three 4" Length Black Oxide Stubby Spade Bits: 1/2", 3/4", 1" Threaded Tip Pulls Bit Through Faster - 3X Faster than Standard Spade Bits All Bits Feature 1/4" Quick Change Hex Shank with Power Groove Includes Folding Nylon Case with Velcro Closure for Storage of 6" Bits