Hi, I'm Steve Smith with Camper Van Freedom. These are the DEWALT D W eighty sixty-two metal cut-off wheels from my van-build kit. I used my DEWALT grinder often enough to go through a lot of these wheels. They lasted longer than the cheaper wheels I tried, and I recommend them based on that use. The D W eighty sixty-two is the four-and-a-half-inch wheel with a point-zero-four-five-inch thickness and a seven-eighths-inch arbor. Those are three separate measurements: the outside diameter, the thin edge and the center opening. The diagram separates them so that a nearly identical model name does not hide a different wheel specification. My original DEWALT grinder was the D C G four-twelve B. The matching manufacturer picture identifies that tool. It is separate from the newer grinder buying option on my linked tool page. My review of these wheels comes from repeated use during the build, rather than a promise of a fixed number of cuts. The cheaper wheels I tried wore down faster. Under heavier work, they also tended to splinter and develop jagged edges in a way these DEWALT wheels did not in my use. That difference is why I kept using the DEWALT wheels, even though I still went through a lot of them. I found them to be great cut-off wheels and would recommend them. My floor-opening photograph shows the result after cutting and surface finishing. The heater-opening work involved more than one cutting tool, and the rough opening was followed by finishing and checking the fit. The photograph is my actual project context. Cutting a part and having it ready to fit were separate stages. The roof-camera mount brought another lesson. I kept shortening bolts and planned to buy shorter ones. That changed the question from how many consumables I needed to which hardware lengths would avoid some of the repeated trimming. This illustrative workshop footage shows measuring and holding a workpiece, alongside my actual mount photograph. My page compares two different wheel constructions. The Diablo diamond metal cut-off disc has a diamond-bearing rim. The Norton metal cut-off wheels use a bonded abrasive format, like the general construction category of my DEWALT wheels. Those are buying alternatives, not extra firsthand wheel-life tests. Their matching pictures make the construction difference easier to compare. Thanks for watching. I'm Steve Smith with Camper Van Freedom. My full DEWALT D W eighty sixty-two review, related grinder page, matching product pictures and current Amazon buying options are linked below. My takeaway is that these wheels lasted longer than the cheaper ones I tried, and reducing avoidable cuts was another way to get more from the metalwork kit. Until next time.