Improved efficiency and consistency is what you get with the NEW Futures One-Pass Bits. These two (2) Bits will transform your old Futures Install Kit into the NEW One-Pass Kit! You can discard the Jig Collar since the installation as been simplified by using these two bits. One bit is for the 1/2″ depth boxes and the other cuts the 3/4″ depth. The bits are custom made by Future Fins right here in the US! Sold as a set, two bits.