{"product_id":"sinbrlai-blank-challenge-coins-10-pack-40mm-solid-brushed-brass-threaded-edge-individually-cased-for-engraving","title":"SINBRLAI Blank Challenge Coins 10-Pack 40mm Solid Brushed Brass — Threaded Edge, Individually Cased for Engraving","description":"\u003cp\u003e\u003cstrong\u003eSINBRLAI 10-pack blank challenge coins are solid brass, threaded-edge disks sized 40 mm × 3 mm that arrive individually boxed and ready for custom engraving or DIY projects.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese blank challenge coins provide a sturdy, polished base for personalisation — ideal for engraving text, logos, or symbols and for turning into jewellery, keychains, or custom mementos. Each coin is crafted from non-electroplated brushed brass for a warm, long-lasting finish and comes protected in a transparent acrylic case so your blanks arrive scratch-free.\u003c\/p\u003e\n\n\u003ch3\u003eWhat are the physical specs and finish of these coins?\u003c\/h3\u003e\n\n\u003cp\u003eEach coin measures approximately 40 mm (1.57 inches) across and 3 mm (0.11 inches) thick, with a threaded edge profile that adds visual interest and helps with alignment during engraving. The blanks are solid brass with a brushed surface rather than electroplating, which produces a subtle luster and robust, wear-resistant character.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eMaterial: solid brushed brass for durability and classic colour\u003c\/li\u003e\n  \u003cli\u003eDimensions: ~40 mm diameter × 3 mm thickness\u003c\/li\u003e\n  \u003cli\u003eEdge: threaded\/serrated rim for a finished look and engraving guidance\u003c\/li\u003e\n  \u003cli\u003eFinish: non-electroplated brushed surface that resists fading\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow are the coins packaged and protected?\u003c\/h3\u003e\n\n\u003cp\u003eEvery coin is packed individually inside a see-through acrylic protection box to prevent scratches or dents during transit. All ten acrylic cases are placed together inside a plastic storage box, which also helps you keep projects organized and ready for engraving or decorating.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eIndividual acrylic protection boxes for each coin\u003c\/li\u003e\n  \u003cli\u003eGrouped in a single plastic storage box for neat storage\u003c\/li\u003e\n  \u003cli\u003ePackaging reduces surface blemishes and shipping damage\u003c\/li\u003e\n  \u003cli\u003eEasy to view and access each blank without removing protective casing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat creative uses and DIY options do these blanks support?\u003c\/h3\u003e\n\n\u003cp\u003eThese blanks are designed for customization — use engraving tools, rotary cutters, stamps, paints, enamel fills, or laser etching to add names, dates, logos, or decorative motifs. They work well as standalone commemorative coins or transformed into wearable and functional items with simple attachments.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eEngrave or etch logos, mottos, or serial numbers\u003c\/li\u003e\n  \u003cli\u003eAdd jump rings, hooks, tassels for keychains or pendants\u003c\/li\u003e\n  \u003cli\u003eConvert into earrings, necklaces, or zipper pulls\u003c\/li\u003e\n  \u003cli\u003ePaint, enamel, or patina for custom colour accents\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I care for and finish these brass blanks after customization?\u003c\/h3\u003e\n\n\u003cp\u003eAfter engraving or decorating, keep the brass bright by gently polishing with a soft cloth and mild metal cleaner if needed. Avoid harsh chemical dips that strip the brushed finish; a clear sealer or protective lacquer can lock in paints or patinas and reduce future tarnishing.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003ePolish with a lint-free cloth to restore shine\u003c\/li\u003e\n  \u003cli\u003eUse mild metal cleaners for stubborn spots only\u003c\/li\u003e\n  \u003cli\u003eApply clear lacquer to protect paint or patina finishes\u003c\/li\u003e\n  \u003cli\u003eStore in the included acrylic cases to prevent scratches\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Artists, hobbyists, small-batch creators, and organizations seeking a reliable base for custom challenge coins, jewellery makers wanting consistent, ready-to-decorate pieces, and event planners or teams producing commemorative tokens. If you need a compact, durable blank to engrave, embellish, or repurpose into personalised keepsakes, this 10-piece SINBRLAI set provides a cost-effective, protected supply.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these coins solid brass or plated?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: They are solid, non-electroplated brushed brass, not plated, providing a long-lasting finish.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I laser engrave these coins?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the brass surface is suitable for laser etching, rotary engraving, and hand stamping.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"SINBRLAI","offers":[{"title":"Default Title","offer_id":55254592979281,"sku":"B0D7PZWR4S","price":34.1,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/sinbrlai-front-packaging-10-coins.jpg?v=1791681369","url":"https:\/\/craftiche.co.uk\/products\/sinbrlai-blank-challenge-coins-10-pack-40mm-solid-brushed-brass-threaded-edge-individually-cased-for-engraving","provider":"Craftiche","version":"1.0","type":"link"}