Kreg DB210-HDBB Bit and Bushing Fifty percent stronger than standard pocket joints, HD Accessories are great for building outdoor projects Designed for use with 1-1/2" thick and thicker material For use in producing HD Joints with the DB210 Foreman Pocket Hole Machine (Grizzly model T26877) DB210 replacement HD bit and bushing Replace bushing and bit with ease 50% stronger than standard pocket hole