---
title: "Manufacturing Reference Charts | Tolerances, Bend Radius | OpenSpindle"
description: "Free manufacturing reference charts: CNC machining tolerances (ISO 2768), sheet-metal gauge and bend-radius, and more, for designing parts that quote cleanly."
canonical: https://openspindle.com/reference
---

# Manufacturing Reference Charts

Free manufacturing reference charts: CNC machining tolerances (ISO 2768), sheet-metal gauge and bend-radius, and more, for designing parts that quote cleanly.