Bronze pre-load nut prevents back driving due to vibration. This exclusive design eliminates the constant adjustment required on other lifts;Direct drive lead screw is fast-acting and self-cleaning. Won't get sloppy over time like belts, chains and gears;Twin ball bearings support the weight of the router. Most other lifts use cheap sleeves;Ultra-flat cast iron plate is precision-ground and measures 8-1/4-Inch by 11-3/4-Inch. Fits all Bench Dog router tables. Various size plastic insert rings are sold separately (1 included);Use 40-002 ProLift adapter for Bosch 1617/1618, DeWalt 610,616/618 and Porter Cable 690/890 routers. Use 40-003 adapter for Makita RF1100/1101. Adapters sold separately

• Bench Dog Tools 40-150 ProLift Router Adjustment System

Bench Dog Tools 40-150 ProLift Router Adjustment SystemBench Dog