Customer Reviews

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

5 star:		(6)
4 star:		(0)
3 star:		(0)
2 star:		(2)
1 star:		(1)

 

 

This wonderful little grinder is amazingly powerful. It doesn't overheat or bog down on even tough jobs like grinding down high spots in concrete. I've owned mine for three years now, have used it a lot and have been perfectly satisfied.

A little safety warning. 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 was grinding through some angle iron when the wheel caught the material, ripping the tool out of my hands. 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. My right knee was ripped open. I have a great looking ragged scar that took months to heal. 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. 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. Duh!

In summary, this is a great tool. It has an excellent two position side handle. The switch has a constant-on option to allow full use of both hands. The gear case is metal and the housing is high impact plastic. It's powerful, well built, well designed, and unbelievably inexpensive. If it was stolen, I'd replace it with the same.

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

If you want this for working with metal, it's a good deal, and blades are readily available. If, however, you want this for cutting paving stone, brick, and masonry, as I did - that's not possible (unless you use the 1/8" sacrificial blades, which can be bought at Walmart [Skil brand], though not at Amazon, apparently). For accurate cutting, you need a diamond cutting wheel, but it's impossible to use any flat blade with this, due to the angle of the guard. Diamond and similar cutting blades only come as flat blades (no Type 27). Even a Skil grinder allows for the use of a flat blade by turning over the locking nut, as do more expensive ones such as Bosch, but this one can't be used that way as the blade ends up too close to the guard. The only way is to remove the guard, which I don't like doing. The manual says to use only depressed center blades, and warns against using diamond blades - so what use is the machine? This drawback should be stated up front, and printed on the box. Solution - don't buy this tool, buy one that can take other blades. Luckily, it was so cheap ($18) at Amazon that I can afford to give it away (hardly worth paying return shipping to return it), and learn from the experience. Its limitations should be stated up front, not hidden in a manual that opens up to the size of a newspaper.

I just received this grinder which went up $5.00 since I bought it and I am very pleased with it.
The size is about the same as a Clarke and the switch operates the same way (Slide on, Toggle off) but has better
action, actually, VERY NICE ACTION, the best I have had with a small grinder. This seems to be a quality tool that will last a long time. Kudos to B&D for coming back from the brink.

This is a great grinder. It replaced the Best Name Brand Grinder on the market that burned up after one year of light service. I have not had this one long but so far I like it better than the most expensive one on the market. It runs smoother, and never kicks off on over load and is much easier to handle. Love it.

Perfect...no problems or issues at all. Small, lightweight and with the right wheel on it does exactly what it's meant to do!

the grinder arrived as promised and works well i will use it till it drops lol
I am a jeep after market builder and it is great

I was convinced on this grinder. I bought it for one job and then took it with me for more heavy duty work, cutting bricks, sanding mostly. It felt well made, but then the rear bearing went out. Looking up tool parts, I see that there aren't any interior parts for this model, it's considered a "throwaway" model, unlike my much older B&D 2750, which still has parts available.

[...]

I bought mine in the orange version at Walmart, same model, type 3. I specifically bought it to use with thin diamond discs and it worked for me.

One thing (besides the unrepairability) I don't like is the lock-on switch. It caught something and jumped out of my hands one time and went flying, wreaking havoc and gashing my arm, though not bad. If it had a momentary on switch like the old 2750, then it would have been winding down before it got to my arm.

Blade guards in general protect a little, but not much. Lots of blade still exposed. This one is decent, spring loaded, not screw adjustable. for better or worse?

In the end, from the use I got out of it before it failed, it's worth the price. If you need something for a month of use, this is better than an off brand chinese tool. But I just hate to support the mentality of trashing a good tool for lack of brushes or one bad bearing. I gave it a little lower rating due to that.

Bought this grinder for replacing windows in my home. I assumed that the grinder would be powerfull enough to grind down aluminum. WRONG!It lasted about 20 minutes before burning out. I called Black & Decker and they told me I would have to take it to a Black & Decker Repair Center to have it replaced. Fortunately,living in Southern California, there was a repair center within 10 miles. 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. 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