This webcast explains how sheet metal accuracy depends on controlling thickness, bend radius and bend allowance. It outlines how bend radius is influenced by tooling, material grade and the V‑die opening, and how bend allowance defines the neutral axis to calculate flat‑pattern lengths. It compares K‑factor, bend calculation and bend deduction, highlighting bend deduction as the most accurate when supported by practical testing. The presentation demonstrates how bend tables in Excel can standardise thicknesses, radii and deductions across a design team, and introduces a software tool that unfolds imported models, generates accurate blanks and automates bend sequencing for production.