<b> Usually the product will be sent in 1-4 working days and takes about 3--5 business days to reach you</b> <br><br> <b> How to preventing heating of the handle</b> <br><br> Please take out a proper amount of excess lubricating oil from the handle to prevent the heat generated by the friction lubricating oil during high-speed rotation of the bearing. <br><br> Due to the inevitable thermal energy generated by the operation of the motor, do not step on the foot within 10 minutes of each use <br><br>or when the temperature reaches about 40 ℃, and the handle can continue to be used after cooling down.<br><br> <b> Characteristics:</b> <br><br> 1.Hanging the host machine above the workbench can save more space and facilitate operation.<br><br> 2. ABS industrial plastic electronic pedal, light weight. When used, it will not generate heat and prolong the service life of the switch.<br><br> 3. Up-pressure decelerates and down-pressure accelerates. Through the foot pedal control speed, easy to operate.<br><br> 4. The engraving speed can be changed at any time, and the hands and feet can be used at the same time to improve the working efficiency.<br><br> 5. Tighten the screw at the bottom of the pedal to directly control the corresponding speed and adjust it arbitrarily (the tighter the screw, the faster the speed).<br><br> 6. Low noise, only slight vibration of the handle, long working hours are not easy to fatigue.<br><br> <b>Parameters:</b> <br><br> Voltage:110V <br><br> Frequency: 50/60Hz <br><br> Power:200w <br><br> No load speed: 18000-20000/rmp <br><br> Load output power: 28000R/min <br><br> The tip of diameter : 4mm/6mm <br><br> Weight: 4kg <br><br>