Description: For 278 nail polish machine connection. It can be controlled in speed, up to 35000rpm. Multi purposes: carving, engraving, routing, grinding, sharpening, sanding, polishing, drilling etc. Forward and reverse direction operation for both right-handed and left-handed use. Low noise, low vibration. Comfortable grip and durable metal construction. Specification: Handpiece length: approx. 16cm/ 6.4 inch Material: Metal Rotation Speed: 0-35,000rpm Clip interface size: 2.35mm Package Includes: 1 Piece Nail Manicure Handpiece : Please allow 1-2cm(0.4-0.8 inch) size difference due to measurement. Thank you!