Stepper Motor：Nema23(57mm) Engraving length: 235mm Engraving diameter: 105mm Angle Accuracy: plus or minus 5%(full step,no load) [ENGRAVES ROUND SURFACES] This four-wheel laser rotary shaft can easily work with most laser engravers,let you perform 360° engravings on cylindrical and round objects such as cups, bottles, wine glasses,tubes, pipes, bowls, and more! [LASER ROTARY ATTACHMENT] Engraving length:50 mm-350 mm. Engraving diameter: 10 mm-150 mm. Higher torque and higher speed. [SMOOTH MOTION] Reduced motor heating and more efficient.Smooth motion and super-low motor noise. [EASY TO USE AND INSTALL] You just need to connect the 4-wire connection cable of this rotary tool to the dedicated port on the laser engraver and configure the settings in the software to start engraving.
eBay