Review on Steel Dragon Tools Magnetic Diameter by Calvin Chavva

Magnet doesn't really stand up to trying to drill 3/4" holes in a 1/4" socket which is rough for the price . from the hole he rips the base of the magnet out of the steel. This leads to barrel and tool breakage. In addition, everyone understands how the speed controller works. It's not mechanical. It's PWM on a DC motor, which means it loses torque the slower you go. So you turn it up and then you start cutting. He will slow down dramatically. If you start slow and then start cutting, the process will slow down to a complete stop. You need to set the speed controller as soon as you start cutting, which means a high initial engagement speed. Simply shortens tool life and generally defeats the whole purpose of speed control. If I had an opportunity to get my money back, I would. Avoid this if you want to drill holes with ease. I gave it 2 stars because if you hold the top down while turning the knob it will cut holes and turn on.