> ## Documentation Index
> Fetch the complete documentation index at: https://docs.firstresonance.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Manage tool inventory

> Add individual serialized tool units, record their last service date, and track maintenance status and service due dates.

You manage [tool inventory](/build-hardware/tools/overview) units in **Tools Inventory**: in the **Supply Chain** section of the sidebar, click **Tools Inventory**.

## Add a tool to inventory

1. On the **Tools Inventory** page, click **Create Tool Inventory**.
2. Enter a **Serial Number** and pick the **Tool / Part** (the tool model). Both are required.
3. Optionally set a **Location**, a **Last Service Date**, and a **URI**.
4. Click **Create**.

## Record a tool's last service date

Open a tool unit to reach its detail page. In the **Tool Information** card, set the **Last Service Date** with the date picker. The change saves automatically. The **Service Interval** shown next to it is read-only and comes from the tool model's maintenance interval.

## Track maintenance status and service due

Each tool unit shows a **Maintenance Status** badge and, while in service, its **Service Due** date. ION [derives both](/build-hardware/tools/overview#maintenance-interval-and-status) from the model's maintenance interval and the unit's last service date.

<Note>
  For additional tool-availability behavior, such as integration with a tool management system, contact your Customer Success Manager.
</Note>

## Move, print, or view history

On a tool unit's detail page, click **Actions** to open the **Tools Inventory Actions** dialog, which has **Move**, **Print**, and **History** tabs. To print barcode labels, use the **Print** tab; for label setup see [Print a label](/build-hardware/labels-and-scanning/printing). To remove a unit, open the **...** menu and click **Delete**.

## Related

* [Manage tool models](/build-hardware/tools/manage-tool-models)
* [Record tool usage on a run](/build-hardware/tools/record-tool-usage)
* [Print a label](/build-hardware/labels-and-scanning/printing)