Protect against accidents and keep every job running smoothly with this plunge router base from Porter-Cable®. The 6931 is made specially for use with routers 690, 9690 and 691, giving you more options and flexibility when completing projects. It also saves you money by supplying the plunge feature you need, without necessitating the purchase of a whole new router. Lightweight and easy to use, the 6931 offers six depth stop positions and completely enclosed springs for consistent operation, as well as a convenient 2-1/2 in plunge range. Porter-Cable® Plunge Router Base, For Use With: 690, 9690, 691, 693LRPK and 694VK Router, 6902 and 6902VS Router Motor, Specifications: 11-3/4 in H x 8-3/4 in W x 12-3/4 in D, Aluminum, Black/Gray