5pcs 3.17x15mm Tungsten Carbide Tip for CNC Router High Low Cutting

Up Down Cut, 3.17mm shank x 3.17mm cutting diameter, 15mm groove length with 2 spiral grooves, total length 38mm, 5 pieces per pack. Due to the high hardness of solid tungsten carbide, it provides excellent abrasion and wear resistance, the bits remain in balance during the high-speed rotation process. Suitable materials: fast chip removal volume and speed, non-stick coating with tips, suitable for composite boards, hardwood, polywood, acrylic. Solid tungsten carbide spiral double flute shank bits are often used for CNC engraving, milling, roughing, recessing and 3D carving.