Electric Nail Drill Machine Manicure Machine Set USB Charging Mill Cutter For Manicure Nail File Pedicure Tool Nail Drill SetOverviews: Low noise: silent without vibration technology High speed: 0 20000RPM. Adjustable speed with three gear Multi purpose: engraving, wiring, polishing, grinding, drilling, etc. Specifications: Nail Product Category: Nail Polishing Tools Item No. Kaiyin Mini Grinding Machine Motor idling: 14500r pm Load speed: 11000rpm Interface: USB+DC Features: small and convenient, adjustable speed Package Content: Built in: polishing host grinding head*6