20 Pieces Blank Challenge Coin Threaded Edged 40 mm with Acrylic Protection Box Laser Engravable Pattern for DIY Crafts Engraving Travel Birthday Commemorative Collection Supplies (Silver, Zinc Alloy)

I recently purchased a set of 20 blank challenge coins, and I couldn't be happier with the results I achieved when laser engraving them. Here's why these coins are an absolute must for anyone looking to personalize their own challenge coins:Quality Material: The coins are crafted from high-quality metal that engraves beautifully. The metal is not too soft or too hard, making it just right for laser engraving, ensuring clean and precise markings.Consistent Size and Weight: Each coin in the set is uniform in size and weight, which is essential for achieving consistent results. It's evident that these coins were manufactured with precision.Smooth Surface: The surface of these coins is exceptionally smooth, allowing for detailed and intricate engravings. It's like a canvas waiting to be adorned with your custom design or message.Easy to Work With: These blank coins are a breeze to work with. They sit securely in the laser engraving machine and hold up well throughout the engraving process. I had no issues with warping or damage.Versatile Use: Whether you're creating custom challenge coins for personal use, gifts, or commemorating special events, these blank coins are versatile and can accommodate various designs and themes.Great Value: This set offers excellent value for the number of coins you receive. It's cost-effective, especially considering the high-quality material and finish.Endless Possibilities: The blank canvas of these coins opens the door to endless creative possibilities. You can personalize them for military units, clubs, businesses, or simply as keepsakes for special occasions.In conclusion, these blank challenge coins are a laser engraver's dream come true. They are designed with precision, provide a smooth surface for engraving, and are versatile for various customization purposes. If you're looking to create unique and personalized challenge coins, these blanks are the perfect foundation for your creative endeavors. I highly recommend them to anyone seeking to add a touch of customization and elegance to their projects!

コイン本体はまずまずなのですが、梱包が雑なせいで全体数の6〜7割のケースが割れています。ケース込みでお考えの場合、半分使えればラッキーと思っておくといいと思います。

I received what I ordered … and then some?The coins were in a bubble wrap sleeve, shrink wrapped in sets of 1, 2, and 5. Each had a clear plastic case. That’s what I ordered. But then there were 20 small plastic bags shoved into the bubble wrap sleeve. Why?Good product. Weird packaging.

Made a few "challenge" coins with these so far and they've turned out really nice. Using a 60w JPT M7 MOPA Fiber laser. Setting are speed 2000, power 90%, frequency 30, pulse 200, 45 deg hatch, bidirectional, .02 lines, 8 degree rotation. I ran it for about an hour per side. Not sure how many passes. Cleanup pass to finish was 2000, 20%, 75 freq, everything else the same, just one pass. Some scotchbrite, brass black, and sunshine polishing cloth to complete. Only complaint: would like to try vitreous enamel but not sure how much zinc in this brass. Guess I'll just have to try and see what happens unless the manufacturer can share what series brass this is?

They look great. But they are much thinner metal by almost a whole mm thinner than the last 100 coins I have bought in the past. And the delivery person never rang the door bell. I have a sign at the door and I have requested the bell to be rung when delivering my items.