Professional quality is -, widely used, high quality and excellent materials. High grinding precision-reasonable chip removal groove design, coupled with high-precision peripheral grinding edge, makes the blade edge , easy to process, smooth chip removal and more efficient. High precision, non-stick tool, smooth . Improve efficiency, use for a long time and reduce the number of tool changes. Anti-impact and anti-collapse knife-the blade is made of cemented carbide raw meal, which is ground and sintered at high temperature, so that the whole blade has strong impact resistance and is not easy to collapse. Specification:27ER 6.0 Large External Thread Colour:As Shown Material:alloy Package Contents: 1 * CNC thread cutter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.