MA-4 – High Dome (Half Round): The half-round domed profile produces dramatic curves on large surfaces
Collet precision: Badeco collets are engineered for highly precise 3/32" (2
The Busch 4203 series carbide twist drills feature a 4-groove design optimized for cutting softer organic materials such as coral and pearls
Manufacturer Part Number F180 Filter Type Cartridge Filter Compatible Unit Quatro Gold Vault Original Version (also known as GoldVault Deluxe) Compatibility
Appendix and supplemental tables for quick bench reference
Jewelry: Concepts and Technology [Hardcover] by Oppi Untracht Copper Brass Nickel Silver Metals & Master Alloys MA-4 – High Dome (HalfOppi Untracht's definitive and exhaustive reference for jewelry makers. A complete, profusely illustrated and photographed guide to worldwide jewelry design, materials, and techniques as well as a fascinating exploration of jewelry making throughout history. Whether you are a student, educator, or working metalsmith, this landmark volume belongs on your bench. Jewelry: Concepts and Technology is a culmination of Oppi Untracht's life work as a trained