Five self centering drill bits in a wood storage box. The tip is designed to nestle in the holes for hardware insuring the pilot hole is perfectly centered. 1/4" hex shank. Bit sizes are 5/64, 7/64, 9/64, 11/64 & 13/64. Also included is a framed wood screw pilot hole guide with lots of info.. Not only what size pilot hole to drill for each size screw but also head size and adjustments for softwood vs hardwood. Cash only sale. Local sale. I will meet you at a mutually agreed upon time and place within Monroe Co. NY so you can inspect the bits before deciding.