Medium Reach Router Bit - 13W x 80L x 8SMedium reach carbide tip router bit 13 wide x 80 long x 8mm shaft. Specifically designed for lock installers to make plunge cuts into timber and aluminium doors and jambs. Festool routers only have 17mm copy rings so this is why we offer 13mm cutters to achieve the 4mm offset. For use with the TIDY TRADIE Router Jig, hinge and lock templates and a 17mm copy ring. Note: the shaft is for a 8mm collet.