Durston Concave Multi-Forming Anvil Mandrels Set of 6 Peddinghaus High Speed Steel is harder

High Speed Steel is harder than carbon steel

Supports both perforated flasks (chamber casting) and solid-wall flasks (top casting)

a hot-air gun also works

Quiet operation at approximately 52 dBA

Durston Concave Multi-Forming Anvil Mandrels Set of 6 Peddinghaus High Speed Steel is harderThe Durston Concave Multi Forming Anvil Mandrels Set of 6 delivers precision ground and polished concave forming surfaces for professional jewelers and metalsmiths. Designed to fit the Durston Multi Anvil Set via the 25mm attachment, these mandrels expand your forming capabilities with consistent, repeatable concave shapes. Whether you're doming, shaping, or forming metal components, this set provides a reliable set of working surfaces engineered to