Cordless Rechargeable Electric Mini Drill Grinder Engraving Pen Rotary Tool Kit
The product adopts a customized ultra-high-speed RuFeB motor with a service life of up to 5,000 hours. More torque than pen. 35000r/min Engraving Pen. The product can last for 100-110 minutes at idling and 60 minutes at full load.