When this cutoff wheel arrived, I was a bit skeptical. It was not as thin as I had hoped, and when I started using it I found it a little slower than other wheels I had used. The more I used it, however, the more it grew on me. I cut 1/2 inch mild steel and grade 8 bolts for over eight hours. I paused only long enough to cool the Dewalt 4.5 inch grinder down and get a drink o f water. I normally would have worn out or broken a dozen standard cutoff wheels in that time. A couple of times, when grinding in difficult to access areas, the grinder would bind or kick, as grinders will do in that situation, but each time, when I inspected the wheel for damage, I found none and could continue working. After a week of regular use, and no shortage of abuse including dropping it off the tailgate of my truck a couple of times, this wheel remains remarkably undamaged. I even got into some aluminum, which it cut pretty well and didn't load up too badly. When it did load up, I just hit some steel with it , and it was quickly back to normal. I have no idea what sort of bonding agent they use to bind the diamond coating to the steel wheel, but it is pretty amazing. I even committed the cardinal sin of using a cutoff wheel as a surface grinder on weld spatter and slag.
Normally this is very unsafe and often causes cutoff wheels to shatter and throw off chunks at lethal velocity. (Yes, I wear a grinding mask.) But with this metal wheel, there was no indication of failure. I am not claiming this tool should be used as a surface grinder, I am just saying that I did it and the wheel is still in good condition. See included picture. There may be some precision cuts where I will use a thinner composite wheel in the future, but for the vast majority of my cutoff and quick grinding around welds, this is going to be my go to wheel from now on.
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Product Description
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Fits Most 4-1/2" Angle GrindersUse with 4-1/2" hand-held grinders and circular saws. Uses a standard 7/8" arbor and includes preinstalled 7/8"-20MM and 20MM-5/8" arbor adapters. |
Vacuum Brazed Diamond RimDiamond Extreme blades are made with high-quality super-abrasive diamonds and are used for cutting or grinding applications. |
.100" Thick Cut Off Wheel Lasts 100X LongerA durable and robust steel core will last up to 100x longer than traditional abrasive cut-off wheels. .100" Thickness allows for the strongest possible bond between the diamonds and the steel core. |
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| 4-1/2-inch | 7-inch | 12-inch | 14-inch | 16-inch | |
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| Price | — | $59.95 | — | — | — |
| Thickness | .100 | .110 | .140 | .140 | .140 |
| Arbor | 7/8"-5/8" Arbor | 7/8" - Diamond Knockout Arbor with 5/8" Bushing | 1"-20MM Arbor | 1"-20MM Arbor | 1"-20MM Arbor |
| For use on | All ferrous and non-ferrous metals including sheet metal, pipe, metal plate, steel bar, angle iron, ductile iron, and rebar. Will also cut concrete, masonry, plastics and wood. | All ferrous and non-ferrous metals including sheet metal, pipe, metal plate, steel bar, angle iron, ductile iron, and rebar. Will also cut concrete, masonry, plastics and wood. | All ferrous and non-ferrous metals including sheet metal, pipe, metal plate, steel bar, angle iron, ductile iron, and rebar. Will also cut concrete, masonry, plastics and wood. | All ferrous and non-ferrous metals including sheet metal, pipe, metal plate, steel bar, angle iron, ductile iron, and rebar. Will also cut concrete, masonry, plastics and wood. | All ferrous and non-ferrous metals including sheet metal, pipe, metal plate, steel bar, angle iron, ductile iron, and rebar. Will also cut concrete, masonry, plastics and wood. |
Reviews with images
Remarkably durable
When this cutoff wheel arrived, I was a bit skeptical. It was not as thin as I had hoped, and when I started using it I found it a little slower than other wheels I had used. The more I used it, however, the more it grew on me. I cut 1/2 inch mild steel and grade 8 bolts for over eight hours. I paused only long enough to cool the Dewalt 4.5 inch grinder down and get a drink o f water. I normally would have worn out or broken a dozen standard cutoff wheels in that time. A couple of times, when grinding in difficult to access areas, the grinder would bind or kick, as grinders will do in that situation, but each time, when I inspected the wheel for damage, I found none and could continue working. After a week of regular use, and no shortage of abuse including dropping it off the tailgate of my truck a couple of times, this wheel remains remarkably undamaged. I even got into some aluminum, which it cut pretty well and didn't load up too badly. When it did load up, I just hit some steel with it , and it was quickly back to normal. I have no idea what sort of bonding agent they use to bind the diamond coating to the steel wheel, but it is pretty amazing. I even committed the cardinal sin of using a cutoff wheel as a surface grinder on weld spatter and slag. Normally this is very unsafe and often causes cutoff wheels to shatter and throw off chunks at lethal velocity. (Yes, I wear a grinding mask.) But with this metal wheel, there was no indication of failure. I am not claiming this tool should be used as a surface grinder, I am just saying that I did it and the wheel is still in good condition. See included picture. There may be some precision cuts where I will use a thinner composite wheel in the future, but for the vast majority of my cutoff and quick grinding around welds, this is going to be my go to wheel from now on.
Top reviews from the United States
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Reviewed in the United States on June 6, 2019
When this cutoff wheel arrived, I was a bit skeptical. It was not as thin as I had hoped, and when I started using it I found it a little slower than other wheels I had used. The more I used it, however, the more it grew on me. I cut 1/2 inch mild steel and grade 8 bolts for over eight hours. I paused only long enough to cool the Dewalt 4.5 inch grinder down and get a drink o f water. I normally would have worn out or broken a dozen standard cutoff wheels in that time. A couple of times, when grinding in difficult to access areas, the grinder would bind or kick, as grinders will do in that situation, but each time, when I inspected the wheel for damage, I found none and could continue working. After a week of regular use, and no shortage of abuse including dropping it off the tailgate of my truck a couple of times, this wheel remains remarkably undamaged. I even got into some aluminum, which it cut pretty well and didn't load up too badly. When it did load up, I just hit some steel with it , and it was quickly back to normal. I have no idea what sort of bonding agent they use to bind the diamond coating to the steel wheel, but it is pretty amazing. I even committed the cardinal sin of using a cutoff wheel as a surface grinder on weld spatter and slag.
Normally this is very unsafe and often causes cutoff wheels to shatter and throw off chunks at lethal velocity. (Yes, I wear a grinding mask.) But with this metal wheel, there was no indication of failure. I am not claiming this tool should be used as a surface grinder, I am just saying that I did it and the wheel is still in good condition. See included picture. There may be some precision cuts where I will use a thinner composite wheel in the future, but for the vast majority of my cutoff and quick grinding around welds, this is going to be my go to wheel from now on.
Normally this is very unsafe and often causes cutoff wheels to shatter and throw off chunks at lethal velocity. (Yes, I wear a grinding mask.) But with this metal wheel, there was no indication of failure. I am not claiming this tool should be used as a surface grinder, I am just saying that I did it and the wheel is still in good condition. See included picture. There may be some precision cuts where I will use a thinner composite wheel in the future, but for the vast majority of my cutoff and quick grinding around welds, this is going to be my go to wheel from now on.
Images in this review
Reviewed in the United States on December 7, 2019
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