Milwaukee 49-22-0175 8-Piece Universal Quik-Lok Flat Boring Spade Bit Set w/ Carrying Case UNIVERSAL QUIK-LOK - Quick and easy accessory changes. Gives the end user extra bit length in hard to reach areas. DOUBLE WING SPURS - Reduces vibration while preventing break out. Spurs allow easy hole formation. PATENTED CUTTING EDGE - Easier and faster wood boring over conventional models. Cutting edge removes chips fast, dissipating heat from the bit. 1/4" QUICK-CHANGE HEX SHANK - For use in all Universal Quik-Lok Extensions. Standard Equipment: 6" Universal Quik-Lok All Hex Extension; 6" Flat Boring Bits: 3/8", 1/2", 5/8", 3/4", 7/8",1", 1-1/8"; and Case.