1. Regardless of the number of edge end mills, first grind the edge of the blade perpendicular to the axis. This is the key to testing your skills;
2. The grinding wheel should be polished well. Look at the tip of each blade as the benchmark, and follow the principle of retaining the tip of the blade.
3. It is recommended to check the milling technology books for the selection of angles, which have detailed introductions;
4. After finishing, find a platform and stand up the milling cutter. If the axis is vertical, all the cutting edges can be point to point, and the deflection angle of the cutting edge is evenly centered, then it is basically OK.
