Deluxe router guide; precision fine adjustment control; dust extraction hood with adapter for 1-1/4", 1-1/2" and 35 mm vacuum hoses Guides cut along work piece edge or up to 8 inches from edge; easily converts into circle guide for making circles up to 32 inches in diameter Plastic with steel rods; die-cast aluminum additional parts Includes router guide, pivot plate, dust extraction hood, vacuum hose adaptor, attachment hardware Fits Bosch Router/Trimmers: 1617, 1671EVS, 1618, 1618EVS, 1617PK, 1617EVSK, 1613AEVS, 1619EVS