VHF Ivoclar PrograMill adapter for Z4 and E4 milling machines, enabling processing of Ivoclar PrograMill-compatible blanks including IPS e.max® CAD and Ivoclar PMMA materials. Expands the material library of Z4 and E4 machines to include PrograMill-format discs and blocks. Supports chairside and in-office workflows requiring Ivoclar material compatibility.