Feature: 1. Stepless Speed System: The micro motor of our brushless electric grinder is well designed and output from 0‑50000rpm by using stepless variable speed. The brushes are removed and the electric sparking is low interference to the machine. 2. Work: Brushless electric polisher can do good work of polishing, trimming, grinding, casting molds or materials and finishing surfaces. 3. Multi Purpose: Our brushless electric polisher is suitable for laboratory, jadestone, abrasive processing, handicraft, decorative carving and polishing, copper and porcelain opening and polishing process, etc. 4. High Torsion: Our electric polisher has high torsion, powerful power, low vibration, low noise, high efficiency and stability. 5. Forward and Reverse: The electric sanding machine has forward and reverse function, which can be adjusted at will and set the emergency brake function protecting the safety. Specification: Item Type: Brushless Electric Sanding Machine Material: Engineering Plastic, Alloy Shell Maximum Torsion: 6.8-7.8N.CM Output: DC0-36V Rotational Speed Control: 0-50000rpm Maximum Current: 4A Variable Speed Mode: Stepless Variable Speed (Forward And Reverse) Collet Maximum Speed: 50K Application: Laboratory, Jadestone, Abrasive Processing, Handicrafts, Decorative Carving And Polishing, Copper And Porcelain Opening And Polishing Process, Etc. Features 1. RPM Display 2. Circuit Protection System 3. Automatic Overload Protection 4. Manual or Foot Control Mode 5. Foot Switch 6. Low Speed High Torsion Mode 7. Rigid or Flexible Start Function . Package List: 1 x Brushless Electric Grinder Console1 x Handle2 x Handle Tool1 x Pedal Switch 1 x Grinder Power Cord1 x Instruction Manual