Pro Tool Reviews examined Makita’s 40V max XGT GAG16 flathead angle grinder. The low-profile head is intended to improve access where the gearcase of a conventional grinder gets in the way. The review describes a five-inch grinder with a paddle switch and variable-speed control.
The source reports a speed range of 3,000 to 9,000 RPM and a bare-tool weight of 4.8 pounds. Its design offers access and speed control, but battery weight and the available working space still matter for overhead or awkward-position grinding. Use the correct guard and a wheel rated for the selected speed.
My Tooldex summary of reporting by Pro Tool Reviews.