Safety cardboard cutter, 5-20mm

Cardboard cutter for DIY projects, crafts, cosplay making, schools and preschools!

If you use an m5x16 screw and m5 nut, instead of the attached pin, you secure the knife blade!
Then the knife is safe to use even for children!

Blades that fit this are:
17.5mm /11/16"

The paper version of this design can be found here:
https://makerworld.com/en/models/717799#profileId-648559

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