DEWALT D28112 4-1/2-Inch Small Angle Grinder. DEWALT D28112 with 10 Amp 11,000 RPM motor is designed for faster material removal and higher overload protection. Use the links and tools below to DEWALT D28112 4-1/2-Inch Small Angle Grinder Review. And See more DEWALT D28112 Angle Grinder Specifications.