l]
| 1. | a shaft or bar the end of which is inserted into a workpiece to hold it during machining. |
| 2. | a spindle on which a circular saw or grinding wheel rotates. |
| 3. | the driving spindle in the headstock of a lathe. |

mandrel man·drel or man·dril (mān'drəl)
n.
A shaft on which a working tool is mounted, as in a dental drill.
See mandrin.