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

by Black & Decker

Product Description

From the Manufacturer

The 7750 4-1/2-inch small angle grinder offers a powerful 5.5 amp motor that operates at 10,000 rpm. A metal gear case adds increased durability and extended life. A convenient slide switch and two-position handle add comfort and control for a wide range of applications. The spindle lock holds the wheel in place for quick and easy accessory changes. This versatile tool is perfect for home projects like sharpening, grinding, cutting, and more. The 7750 includes the 4-1/2-inch grinder, metal grinding wheel, and spanner wrench.

Product Description

5.5A 4 1/2'' 10,000 RPM angle grinder. Metal gear housing disperses heat for increased life of tool and durability. 2 position side handle design for comfort and control. Spindle lock for easy disc change. Easy use slide switch. 5/8'' 11 spindle. Includes metal grinding wheel and wrench.

Product Details

• Product Dimensions: 12.6 x 5 x 5.5 inches
• Shipping Weight: 4.8 pounds (View shipping rates and policies)
• Shipping: This item is also available for shipping to select countries outside the U.S.
• ASIN: B000077CPU
• California residents: Click here for Proposition 65 warning.
• Item model number: 7750
• Average Customer Review: 3.9 out of 5 stars  See all reviews (9 customer reviews)
• Amazon Best Sellers Rank: #11,331 in Home Improvement (See Top 100 in Home Improvement)
  • #19 in Home Improvement > Power & Hand Tools > Power Tools > Grinders > Angle Grinders

Customer Reviews

Most Helpful Customer Reviews

45 of 45 people found the following review helpful:

5.0 out of 5 stars Excellent at the price, March 25, 2005

By 

Wings42 (San Diego, CA United States) - See all my reviews

This review is from: Black & Decker 7750 4-1/2-Inch Small Angle Grinder (Tools & Home Improvement)

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.

21 of 22 people found the following review helpful:

5.0 out of 5 stars easy to use, September 4, 2003

By 

"mnfvincent" (Huntsville, Al United States) - See all my reviews

This review is from: Black & Decker 7750 4-1/2-Inch Small Angle Grinder (Tools & Home Improvement)

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.

10 of 10 people found the following review helpful:

2.0 out of 5 stars No use for cutting masonry! Can't use flat diamond wheels., November 5, 2010

By 

A. N. O'Nemus (CA, United States) - See all my reviews

Amazon Verified Purchase

This review is from: Black & Decker 7750 4-1/2-Inch Small Angle Grinder (Tools & Home Improvement)

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.