... frame -with stepping motor -High accuracy High quality cnc drilling machine for metal Product features: With 600mm* 600mm engraving range;With 3.0KW ... anti-gap rod, with high accuracy, low noise, and long life;Equipped with high-speed spindle motor, high-performance division drive ... adjusted timely by a frequency converter. Advantage: work with high frequency, stable, low noise, fast heat dissipation, ...