Powerful & Versatile: 15 A motor delivers strong cutting/grinding performance at speeds from 2,800 to 11,500 RPM . User Comfort: SJS™II mechanism + vibration-absorbing handle reduce fatigue during extended use. Durable Design: Laminated epoxy armature, labyrinth-sealed motor, enlarged cooling fins, spiral bevel gears, and full-aluminum gear casing protect internal parts. Control & Safety: Slide switch with lock-on, soft-start, constant speed under load, current limiter, mechanical brake stops wheel in under 2.5 seconds, and Anti-Restart feature.