The Kreg Precision Router Table Lift makes even the most precise router height adjustments quick and easy through its patented Quick-Lift system, giving users the confidence to make adjustments and bit changes on the fly. Features: * Lift mounted to heavy gauge aluminum insert plate machined for a 9-1/4 x 11-3/4 opening * Micro adjust thumb wheel eliminates the need for a crank handle * Spring-assist lift wrench makes rapid height adjustment easy * Includes 3 self-leveling, twist lock insert rings: 1-inch, 2-5/8-inch and a step ring * Adjustable reference scale can be set to zero from any bit position What"s In The Box: * Kreg PRS3000 Precision Router Table Lift * (3) self-leveling twist lock insert rings (1 in., 2-5/8 in., step ring)