2 flute HSS endmills with a 1/2" shank. Flutes have a negative cutting angle instead of the normal postiive angle so these would be perfect for router tables wanting to mill thin pieces of plastic, aluminum and MDF. The negative angle flute directs the cutting forces downwards, keeping the material on the table instead of trying to lift it up. These endmills are new but not in their original boxes. I have more than 50 of these. Shipping is flat rate for any quantiity of end mills.