ITEM NAME:6pcs/Set 3 Flute HSS Chamfer Chamfering End Mill Cutter Countersink Drill BitM3c Features: Natural color three edge mill cutter。 It is suitable for use in the work-piece which the hardness is under 25 degrees, Such as aluminum sheet, thin iron plate, the insulating board or PVC board. It's very sharp and durable,you use it for a long time. Size: Head diameter * the shank diameter * total length 6.3MM: 6.3MM * 5MM * 37MM 8.3MM: 8.3MM * 6MM * 40MM 10.4MM: 10.4MM * 6MM * 39MM 12.4MM: 12.4MM * 10MM * 46MM 16.5MM: 16.5MM * 10MM * 47MM 20.5MM: 20.5MM * 10MM * 47MM Material: HSS(high speed steel) Color: Silver Package includes: 6 x Three Edge Chamfering Note: Under the influence of light and the display, the color difference may decrease slightly..6 x Three Edge Chamfering. Material: HSS(high speed steel). Natural color three edge mill cutter。. Under the influence of light and the display, the color difference may decrease slightly. Such as aluminum sheet, thin iron plate, the insulating board or PVC board.