Cutting and Grinding Tools for Welding An Introduction
Larger grinders use discs up to 9 inches and are ideal for beveling thickwalled pipe. The other variable to consider when shopping for a grinder is the motor''s amperage. More amps means more power and the ability to grind faster. A 10amp angle grinder is standard in industry, while students and hobbyists may buy a 6 to amp grinder.