For most metals, 14-gauge would be too thick for metal stamping, but because aluminum is a soft metal, 14 gauge is a good compromise between stampability and bracelet durability.
14-gauge pewter blanks from Vintaj are malleable and fun to stamp and customize.
Copper isn't quite as soft, so 14-gauge is a little tougher to stamp. We recommend smaller stamps, or annealing the blanks before stamping with larger stamps.
14-gauge brass is noticeably harder. We recommend it with smaller stamps (it's easier to get a deep impression with smaller stamps), or for experienced metal stampers. 14-gauge brass bracelets blanks are excellent for etching with ferric chloride!
All 3 materials can easily be bent on an oval bracelet mandrel or using the E-Z Bender tool. They polish up beautifully!