Black & Decker 7750 4-1/2-Inch Small Angle Grinder

• DEWALT DW4522 High Performance 1/8-Inch Metal Cutting and Grinding Wheel
• Black & Decker MS1000 Cyclone 1.4 Amp Orbital 4-in-1 Multi Sander
• DEWALT DW4701 Industrial 4-1/2-Inch Dry or Wet Cutting Continuous Rim Diamond Saw Blade with 7/8-Inch Arbor

I assumed that the grinder would be powerfull enough to grind down aluminum. When I took it back they didn't have any in stock so they would have to send me a new one, which would take 7-10 working days. Fortunately,living in Southern California, there was a repair center within 10 miles. Bought this grinder for replacing windows in my home. WRONG.It lasted about 20 minutes before burning out. I did receive another grinder within a week, however when the grinder burnt out, I had no choice but to purchase another grinder to finish replacing the window I called Black & Decker and they told me I would have to take it to a Black & Decker Repair Center to have it replaced.

I was grinding through some angle iron when the wheel caught the material, ripping the tool out of my hands. It doesn't overheat or bog down on even tough jobs like grinding down high spots in concrete. My right knee was ripped open. On another occasion, when grinding concrete, I stood up and relaxed, and the still spinning wheel cut my left hand to the bone, barely missing a tendon.

It has an excellent two position side handle. The gear case is metal and the housing is high impact plastic. Duh.In summary, this is a great tool. This wonderful little grinder is amazingly powerful. Grinders are extremely dangerous power tools because of the exposed very high speed spinning grinding wheel, and because of the great torque force when the wheel meets resistance. I wasn't wearing gloves, was too lazy to screw in the side handle which would have given me a better grip, and was wearing shorts. The switch has a constant-on option to allow full use of both hands.

It's powerful, well built, well designed, and unbelievably inexpensive. I've owned mine for three years now, have used it a lot and have been perfectly satisfied.A little safety warning. I have a great looking ragged scar that took months to heal. If it was stolen, I'd replace it with the same. When using grinding or cutting tools, ALWAYS have solid footing, wear protective clothing, use the side handle or other safety devices if available, and try to stay alert.

It was also very cheap. This thing is very easy to use. It is light, and the wheel turning acts like a gyroscope, steadying it. It is high quality and I expect it to last a long time. It cuts, grinds, sands and anything else you could think of without boging down.