Generally there are no pros and cons. However, it is recommended that the cutting blade face the side with the trademark outward, because the cutting effect will be worse if the trademark side is inward. Grinding discs are different from cutting discs. Grinding discs have front and back sides. The side with the iron plate is the front side. Note that there should be no water when using resin cutting discs to prevent imbalance and safety issues.

Precautions for using an angle grinder

1. Wear protective glasses before use and do not face the grinding wheel directly. Do not use gloves when using an angle grinder, and never use cotton gauze to wrap the tool.

2. Before use, the grinding wheel should be carefully inspected to see if there are any cracks or other damage, and whether the grinding wheel shaft is reliable. Check whether there are any debris in the angle grinder and the guard. Make sure there are no problems before turning it on.

3. Grinding can only begin after the grinding wheel has been turned on for 1 minute and the speed is stable. During operation, you should stand on the side and not face the grinding wheel to prevent damage to the wheel and injury.

4. It is prohibited to use one grinding wheel at the same time, and it is prohibited to grind from the side. No gloves are allowed during use, and no onlookers are allowed.

5. The operating position should be at an angle to the angle grinder, apply pressure evenly, and never hit the grinding wheel to prevent it from breaking and hurting people.