Are you specifically looking for the deep cut blade and housing? If so, those will be back in stock around mid-March. However, they’re not the blades you should use for intricate details. You’ll want a 30° blade for that. You can find those on Amazon. They don’t have to be LOKLiK brand. Here is a listing for all three types of blades. If you have the deep point blade housing, these deep point blades (blue) will work in it. But, like I said, it won’t help you to cut small letters. You should try the yellow (30°) blade in the regular housing for that.
Here’s my Loklik Blade Guide that you may find useful.