Milwaukee 6142-30 Angle Grinder vs Milwaukee 6146-30 Angle Grinder

Both are 11 amp, 4-1/2 inch corded Milwaukee grinders with 5/8"-11 spindles and tool-free guards, so the real split is the switch and safety electronics. The 6142-30 uses a lock-on paddle switch, which is easier on the hand during long grinding and cutting sessions. The 6146-30 adds electronic kickback control and overload protection, which matters if you cut in tight spots or push the tool hard. Owners of Milwaukee's corded grinders generally report strong motor life and good dust sealing; the 6146-30's extra electronics make it the safer pick for heavy cutting, while the 6142-30 is the simpler, lighter-feeling tool for general grinding.

• Choose the Milwaukee 6142-30 if you want a straightforward lock-on paddle grinder for sustained grinding and wire-brushing where you keep the trigger held.
• Choose the Milwaukee 6146-30 if you cut or grind in awkward positions and want electronic kickback control and overload protection.