The EB-TY wood drill bit is a quick-release replacement bit for use with the EB-TY Premium Hidden Deck-Fastening System™. This drill bit is used with the EB-GUIDE predrill tool. Together, they are used to drill pilot holes into deck boards at the recommended angle for installing screws for EB-TY Premium biscuits. EB-TY® 1/8 in. x 3 in. Quick-Release Wood Drill Bit (3-Qty) (Pack of 3240).