Spiral Flush-Trim Router Bits, 1/4 Inch Shank Two Flute Solid Carbide, Down Cut. Made of Premium C3 micro-grain solid tungsten carbide with NANO blue coated. Industrial quality router bits provide precise, efficient cuts and offers extreme durability. Up to 2.8 X longer life compared to uncoated bits. Down Cut Spiral Flush-Trim Router Bit with Top Bearing: 1/4 Inch shank, 1-1/8 Inch cutting length, 3 Inch for total length. Two independent ball bearings at tip ensure smooth running. For use on CNC, table mount and handheld routers. Spiral Router Bits design of router metal cutting bit makes it have a larger spiral chip removal space, which is convenient for cutting smoothly, Non sticky, odorless and quiet,clean Cutting. This flush trim bit can be used for any flush trim situation and is an excellent choice for pattern or template work. Nano Blue Coating with high hardness and heat resistance enables tool's cutting edge to retain crucial sharpness and lubricity. This provides longevity and produces cutting results of the highest quality. Down cut flutes expel chips down and away from the router, leaving a smooth top surface. High precision, efficient cutting and durability. 2 Flute Spiral Flush Trim Router bits with Down Cut Suitable for soft hard woods, ply-woods, composites, laminates, plastics and some non-ferrous metals.