> For the complete documentation index, see [llms.txt](https://protolab.gitbook.io/protolab/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://protolab.gitbook.io/protolab/techniques/craft-knife.md).

# Craft Knife

Retractable blade knives are likely to cause grave injury if not used safely.

Below are our tips on using cutting knives safely and effectively.

{% tabs %}
{% tab title="Knife Safety" %}
{% embed url="<https://www.youtube.com/watch?v=mbqNonPx1pY>" %}
{% endtab %}

{% tab title="DIY Safety Ruler" %}
{% embed url="<https://www.youtube.com/watch?v=r6dwpF0nsOY>" %}
{% endtab %}
{% endtabs %}