Made from 3/8 inch thick precision straight extruded anodized aluminum that will not fluctuate when humidity changes Fence faces are made from smooth melamine coated MDF and are adjusted by way of 4 rear mounted threaded knobs. The outfeed fence face can be shimmed out either 1/32 inch or 1/16 inch by way of a brilliant shim system where 2 square aluminum bars are slid into one of 2 sets of offset tracks in the fence face T tracks on the top and front accommodate a wide range of accessories. Comes equipped with a bit guard, feather board and adjustable stop Spacing range for adjustment knobs is 6-1/2 to 10-3/4 inches or 18 to 22 inches. Has a Dust port with 2-1/2 inch OD and 2-1/4 inch ID opening This deluxe router table fence will introduce a new level of accuracy and cleanliness to any shop. This deluxe router table fence is made of 3/8-inch-thick precision extruded anodized aluminum that will stay straight and true when humidity changes. It measures a full 3-1/2 inches tall and 3-1/2 inches wide. Rear-mounted 4-1/2-inchtall adjustment knobs make it easy to adjust the fence back and forth. Spacing range for adjustment knobs is 6-1/2 to 10-3/4 inches or 18 to 22 inches. The fence faces are made from smooth melamine coated MDF. The fence opening can be adjusted by way of 4 rear mounted threaded knobs. The fence opening can accommodate bits up to 3-1/2 inches in diameter. The outfeed fence face can be shimmed out either 1/32 inch or 1/16 inch by way of a brilliant shim system where 2 square aluminum bars are slid into one of 2 sets of offset tracks in the fence face. T tracks on the top and front accommodate a wide range of accessories including feather boards or stopsHas a Dust port with 2-1/2 inch OD and 2-1/4 inch ID opening. Comes equipped with a bit guard, feather board and adjustable stop. Table and router not included.