R501 lithium brushless electric circular saw
There is no power cord, and it can be used in any scene. It is extremely suitable for narrow space/high-altitude work/daily household, etc.
No spark, no burning, strong torque, high speed. No need to replace the carbon brush, no need to add oil, and easy to maintain. The service life is about 20000 hours.
No spark, precise design will not wear the motor.