2. Including the ball shaft, to keep smooth

3. Portable tools, without the use of fixed

4. Do not put more than 1.5mm thick material (clip thickness of 1.5mm)

5. Processing angle: 45 to 135 degrees If you want to process less than 45 degrees of tool material, the first processing point of view to 45 degrees, and then remove the tool material, the secondary processing by hand to make a smaller angle