25Pcs 40mm Blank Challenge Coin Engraving Blanks - DIY Personalized

In this review of the 25Pcs 40mm Blank Challenge Coin set, the bottom line is simple: this pack is for crafters who want a consistent, ready-to-engrave metal blank in bulk. The reviewer found the set especially useful for small projects, custom gifts, and practice runs on engraving machines because each brass medallion is uniform in size and protected in its own clear box. For anyone wanting a reliable supply of coin blanks to laser engrave or hand-stamp, this set delivers quantity and durability without fuss.

Key Features

• Quantity: You get 25 identical coins, which is enough to support repeated projects, group workshops, or multiple personalized gifts.
• Material quality: The coins are made from brass-like metal that resists fading and wear, giving finished pieces a long-lasting look.
• Size and thickness: At approximately 40 mm in diameter and 2.2 mm thick, these blanks are a practical size for keychains, challenge coins, and small medallions.
• Protective packaging: Each coin is packed in an individual transparent acrylic protection box to prevent scratches in transit and simplify storage.
• Engraving readiness: The compact, flat blank surface is suitable for laser engraving, metal engraving machines, or hand engraving for clear, personalized results.

Who It's For

This bundle is ideal for hobbyists who do frequent DIY metalwork, small business makers producing custom challenge coins, or craft instructors running group sessions - the abundant quantity and individual boxes make distribution easy. The set is also useful for people who want to test engraving settings across multiple pieces without buying single expensive blanks.

Those who should look elsewhere include buyers who need larger, thicker, or plated commemorative coins out of the box, or collectors seeking finished, highly detailed coin art rather than blanks for customization.

Pros & Cons

Pros

• Plenty of pieces per pack, which lowers per-coin cost for projects and classes.
• Durable metal construction that stands up to handling and resists quick fading.
• Individually boxed coins reduce shipping damage and make storage tidy.

Cons

• Blank finish means you need engraving equipment or services to achieve the final look.

Specifications

Product type	Blank challenge coin medallions
Quantity	25 pieces
Diameter	Approx. 40 mm (1.57 in)
Thickness	Approx. 2.2 mm (0.08 in)
Material	Brass-like metal
Packaging	Individual transparent acrylic protection box per piece

Our Verdict

The 25Pcs 40mm blank coins are a practical, value-oriented choice for DIYers and small makers who need consistent, ready-to-engrave pieces in quantity. They are not finished collectibles, but their durable metal and protective boxes make them a dependable blank canvas for engraving, stamping, or personalized gifts.

Frequently Asked Questions

Can these be laser engraved?
Yes, the blanks are suitable for laser engraving; start with lower power and increase slowly to achieve the desired effect.

Are the coins plated or colored?
The coins are a brass-like metal as shown; slight color variation may occur due to screen differences.

Is adult supervision required?
These are small items and adult supervision is recommended when children handle them.