10Pcs 3.175*22 Router Bits Spiral Shank End Mill No Burr for Wood Carving Cutting Engraving Milling 10Pcs 10Pcs router bits work strong and stay ponited, used for carving, cutting, engraving, milling, hand router detail work. Features: When you tried one of bits you got it to go at 300mm/min with a layer depth of 2mm and it was like going through butter (in 19mm pine board), without the X/Y motors skipping. It can probably do even better, quicker and larger layer depth. It significantly quicker than using a drill while creating holes. They cut clear and can lasted quite a while and you will love these bits for the jobs you do. Not only use them on CNC router such as carving, cutting, engraving, milling, you can also use them in the hand router for detail work and so on. Suitable for hard/soft woods, surface machining, 3D relief sculpturing, three-dimensional sculpture, etc. Specifications: Material: Tungsten steel Item Size: 22 * 3.175mm / 0.87 * 0.125in Package Weight: 42g / 1.48ounces Package Size: 55 * 54 * 9mm / 2.17 * 2.13 * 0.35in Note: Be sure to hold on tight. The is some kick back interspersed with the near effortless cutting, so be careful since your cuts with a rotary tool flex shaft are totally freehand. It doesn't like being at an angle, please always try to go for 90 degrees to the work. Packing List: 10 * Router Bits