Daredevil, 8 Piece, Spade Bit Set, Consists Of: 3/8" x 6", 1/2" x 6", 5/8" x 6", 3/4" x 6", 7/8" x 6", 1" x 6", 1-1/8" x 6" & 1-1/4" x 6" Spade Bits, Bits Features Full Cone Threaded Tip For Fast & Effortless Drilling, Contoured Paddle For Fast Chip Removal, Hex Shank Power Groove To Reduce Slippage, Spur & Reamer Tips For Cleaner Holes, Provides Cleaner Hole Quality With Reduced Breakout.