8020, 1030, 10 Series 1 Inch X 3 Inch T-Slotted Aluminum Extrusion DIY Extruded Linear Slot Bar Rail 80/20 (Smooth, Clear Anodize, 48" Long)
This extrusion is praised for its high quality, versatility, and accurate straight edge. It is ideal for various projects such as fences, miter gauge fences, and sleds for table saws. However, some users experienced issues with the slots being smaller than expected.