Bosch and East Chengdu are good, with moderate prices. They are all brand goods, absolutely strong. It is enough to choose 100MM sand table, and 150 is a bit heavy, which cannot be controlled by one hand. I am tired. Don't choose those with too much power and speed. Eating too fast will be difficult to control.

To tell the truth, the angle grinder can work continuously for three hours, which is quite endurance. The actual work process is stop-and-go, and it is basically impossible to get it in place at one time. Moreover, the steel plate needs to be cooled, and it is unlikely to be polished continuously, so it is meaningless to require continuous work for 6 hours.