I only have to give it 5 stars, it's cheap and has 10,000 rpm. It really has a lot of torque and horsepower for what I paid for it. I used sandpaper and have to be careful not to remove too much. I never get bogged down cutting pipe from QTR grindplates and there is no security here as it is an on and off latch, not a trigger, just a screw on the handle. It does NOT look like a cheap tool and never gets hot even after 20 minutes of continuous use. The kit includes a special wrench forโฆ