How to Replace Your graphtec/cameo blade
Material
Tutorial

Remove Black Cap
Twist and remove the black part.

Insert Blade
Insert the blade into the black part hole. Push to ensure property inserted

Assemble Parts Back
Assemble the parts back together and twist the parts back together, make sure it is twisted all the way.

Adjust the Blade
To adjust the blade, turn the top part. Make the blade doesn't stick out too much.

Apply to Cameo 3, 2, or 1
To adjust the blade, turn the top part. Make the blade doesn't stick out too much.

Apply to Graphtec
To adjust the blade, turn the top part. Make the blade doesn't stick out too much.

Gray Adaptor
For the blade holder to work with a Cameo 4, you need to have a gray adaptor tool, it should be included in your cameo 4.

Open
Open up the gray adaptor.

Place
Place the blade holder inside

Close
Make sure the blade holder fits right then close the adaptor.

Apply to Cameo 4
Make sure the blade holder fits right then close the adaptor.
Video
How to replace your GCC/Cricut Blade
Material
Tutorial

Crucit Blade Holder
Take out the blade holder from the citcut itself. It should be compatible with the blades

Insert Blade
Simply take the blade and insert it in the opening of the blade holder. Make sure your blade is 2mm thick.