The Porter-Cable 6931 is a 2-1/2 inch travel, heavy-duty plunge base designed for Porter-Cable 690 series router motors. It features machined brass bushings, steel guide rods, and a 6-position adjustable turret for precise, repetitive cuts. The base is compatible with standard Porter-Cable guide bushings and edge guides.Key Features & Details:Compatibility: Designed for 690-699 series routers, including 690, 691, 693, and 6902 motors.Design: Features a flat side for working in tight spaces and a clear Lexan sub-base for improved visibility.Depth Control: Includes a 6-position turret stop for stepped or repeated depth settings.Durability: Made in the USA with steel rods and brass bushings.Included Components: Often includes the base housing, handles, depth stop assembly, and sub-plate.Where to Find:It is generally available through online retailers and secondhand markets like eBay for around \(\$100-\$150\) used. YOURS FOR $25. ROBERT. 204-294-9796