The general guideline for minimal ferrule design is: 03/25/2021 – by Mod_GuideK 0 The general guideline for minimal ferrule design is: A. 0.5 mm B. 1.0 mm-2.0 mm C. 3.0 mm-4.0 mm D. 5.0 mm SHOW ANSWERSCorrect Answer: B Explanation/Reference: Download Printable PDF. VALID exam to help you PASS.