Top 10 Best Angle Grinders for 2019 Reviews Buyers Guide
If you are comparing two angle grinders with the same amp rating, then the one that has the lowest RPM would have the most torque. The lowest RPM on our list was 6,000, but most had a rating around 11,000. To give you a better example, a grinder with 7 amps and 10,000 RPM would have more torque than a grinder with 7 amps and 12,000 RPM.