200W 300w 400w 500w Spindle Motor 48VDC ER11 ER16 Air Cooled Spindle High Speed Spindle Brush PCB Engraving Machine and Bracket ,Anti-Rust

Chuck Piece Length: Arbor parts 35mm Part chuck diameter: 16mm Motor length: 203mm (including socket parts and motor) Spindle eccentricity of about: 0.01-0.03. It can be used for metal or non-metal engraving and other materials.