---
title: M7, M8, M9 (Coolant Control)
slug: m7-m8-m9-coolant-control
docTags: 
createdAt: 2023-04-17T15:01:26.000Z
---

To turn the mist coolant on, program `M7`. To turn flood coolant on, program `M8`. To turn all coolants off, program `M9`. It is always possible to use any of these commands, regardless of what coolant is on or off.&#x20;