Blank Brass Challenge Coin Laser Engraving Custom Coins Blanks 40 mm with Acrylic Protection Box for DIY Crafts Birthday Travel Commemorative Collection (10pcs Brass)

I have bought multiple sets of these over the past year to engrave with my Enjoywood Laser. These coins are the perfect canvas for a very clean image on a custom challenge coin. The price is also low - especially given the high quality. I will continue using these.

Great for engraving!

This is the 2nd time I have ordered these coins and I am very happy with them. They are solid brass and the price is right!

These are the ones. Great learner coin blanks for Fiber laser practice. Solid brass not plated. Look no further, but save some for me.

These are great quality! Just received my second order!

These are solid brass. I have tried several different "brass" coins on amazon that turned out not to be solid brass. these are and engrave nicely! Thank you!

The coins deep engrave well and the resulting material is copperish in color. If you are going to be adding patina to the brass, I would suggest running a few cleaning passes over the coin to remove the coating/protectant. If you don't the blackening agent won't do anything. However, if you do leave the coating on, it's a nice way to mask the patina have have a mix of black with bright brass!I did have an order error where I got 8 instead of 10 but Amazon did a replacement without problem. Plastic cases are nice but be aware that some of them may break in transit. I had 2 broken but those were waste coins for testing anyways so not a big problem.The only complaint is that there is an raised center section creating a channel around the engravable area. You may want to flatten this down if you don't want the ring otherwise, it's a nice coin. I wish they had a flat face option, though.

These are nice, sold brass coins that I 2.5d engrave with fiber lasers. I have bought these three times now and am very pleased with them.