2 Pcs Copper Sheet, 10" x 8", 28 Gauge(0.3mm) Thickness, Double Sided Film Attached 99.9% Pure Copper Sheets Metal Plates for Crafting. Modelers, Jewelry, Repairs, Electrical

This review is for the 2 pack 8x10” 1mm thick copper plateThe copper plates arrived well packaged with no dents, dings, major scratches or bends. Plus the seller has film covering on both sides of the plate to help protect them. All nicely done. A big plus for me was the plate sizes were a true 8x10” - amazing how often the size cited is not exactly what you get; but in this case it was.The 1mm thickness (roughly 18 gauge) is somewhat stiff to work with; but still easy enough to form for various applications. In my case I needed some copper sheet to make custom heatsinks for TO-220 power mosfets. The 1mm size was recommended as a suitable thickness for this task and the large 8x10” plates gave me plenty of material to work with.One of my key requirements was for the plates to be very flat – no warping or other defects. These plates arrived so true that I couldn't see light under them from one side to the other while laying on my counter top – excellent! To keep the flat aspect I used my metal cutting band saw to make the individual pieces. A cutoff wheel in a right angle grinder was my second choice. Using tin snips was not an option due to the curving of the material as it's cut. The copper plate cut very clean and required only light sanding wheel touch-up to remove burrs. I did the one 90 degree bend holding the copper piece in a vise and then holding a hardwood block against the side of the copper to fold it over squarely. Drilling the TO-220 mounting hole was a breeze and I then used the tin snips to make the small triangular bit which provides a “stop” to keep the heatsink from rotating when attached to the power mosfet. The picture shows a formed heatsink plate and one with the bga heatsink attached.While all the cutting, forming, and drilling took some time; the whole process went better than I expected because the material was stiff enough for the handling/machining and it's condition was exactly what I needed.It may take me a while to use up both of these plates but I'll definitely come back to this seller for when it's time to get more! Absolutely fully satisfied with this product.

It arrived in perfect condition.

great Value

I like that this was mostly blemish free and did not require much polishing.

We’ve purchased these a few times for use in an enameling class. Quality seems good for the purpose.

Copper works great after annealing. Beautiful.

A 5/16” female disconnect on my Yanmar Marine diesel broke. I looked at local stores, online, at Yanmar International and could not find one. I did that for over a month. So I bought this sheet and made one. Third try was the charm. Works just fine.

Nice and heavy copper sheets will be using the for printmaking.