1--First choice of high speed cutting tooling system with longer tool life.
2--No vibration to ensure stable performance.
3--The polishing doesn't influence precision. the coating is even and chemical fluid spitting degree is almost 100%. it can prevent the spindle from abrasion and doesn't influence precision.
4--Overall nickel coating, including inside and outside cone, even if you do not take any anti-rust actions, it won't rust either.