Ridgid R4330 Planer, 13-Inch Thickness Three-Blade Cutterhead  leaves a smooth, blemish free surface to make final finishing easier Dual-Edge, Quick Change Blades  self-indexing blades are self-aligning and reversible for extended life Precision Lead-Screw System  eliminates the need for a cutterhead locking system and provides consistent cut thickness across the full width of the workpiece Large Infeed/Outfeed Table Extensions  provides extra workpiece support to help eliminate snipe On-Board Blade/Tool Storage  keeps blades and blade changing tools conveniently stored for quick and easy access