# CHAMFERB System Variable [GstarCAD 2020](Help%20System/GSTARCAD/2020/Index.md) → [System Variables](Help%20System/GSTARCAD/2020/System%20Variables/(System%20Variables).md) → [C](Help%20System/GSTARCAD/2020/System%20Variables/C/(C).md) ## Function Description: The CHAMFERB system variable is used to set the first chamfer distance when CHAMMODE has set to be 0\. | | | | --- | --- | | Type | Real | | Saved in | Drawing | | Initial value | 0.0000 | --- ## Other versions with matching text [GstarCAD 2016](../../../2016/System%20Variables/C/CHAMFERB%20System%20Variable.md) · [GstarCAD 2017](Help%20System/GSTARCAD/2017/System%20Variables/C/CHAMFERB%20System%20Variable.md) · [GstarCAD 2018](Help%20System/GSTARCAD/2018/System%20Variables/C/CHAMFERB%20System%20Variable.md) · [GstarCAD 2019](Help%20System/GSTARCAD/2019/System%20Variables/C/CHAMFERB%20System%20Variable.md) · [GstarCAD 2021](Help%20System/GSTARCAD/2021/System%20Variables/C/CHAMFERB%20System%20Variable.md) · [GstarCAD 2022](Help%20System/GSTARCAD/2022/System%20Variables/C/CHAMFERB%20System%20Variable.md)