DeWALT DWE402 Corded 4-1/2 in Small Angle Grinder, 11000 RPM, 11 AmpModel No: DWE402. The DWE402 4-1/2" (115mm) Small Angle Grinder features three powerful systems for maximizing performance such as the Dust Ejection System for preventing damaging dust from entering the tool, One-Touch Guard™ for 360-degree rotation, and Quick-Change™ Wheel Release for easy wheel removal. Next Generation 11 Amp AC/DC 11,000 rpm motor provides the best power to weight/size ratio available. Dust Ejection System ™ provides durability by ejecting damaging dust and debris particles that enter the tool. Oversized brushes provide 2X brush life over previous model (D28402). Large spiral bevel gear provides long transmission life. One-Touch ™ Guard allows for 360 degree rotation of the guard with a single action. Quick-Change ™ Wheel Release allows tool free wheel removal without need for a wrench. Includes: 2-position side handle, 4-1/2” One-Touch™ (T27) Guard.