As I had said in my last post I got a new teflon folder from Dennis Rudd, it is the boxmakers tool that he sells. I really enjoyed the one box I made and am hoping that having the new folder will motivate me to make some more.
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The bone folders I purchased at various craft & hobby stores in Eugene & Portland. I had just these three until about 2 months ago and love each for different purposes. The one in the middle is my favorite for scoring, it has a very fine sharp edge on the front of it. I used it to make all the little boxes for my wedding and took a chunk of out it. I can't remember where I found it and thus far have been unable to replace it.
The teflon folders I am still honestly getting used to! They don't feel anything like a real bone folder, they are much slicker and take some wrangling for me to hold on to. The closer of the two tools I purchased from Talas and was the first in my collection. I've come to love it for smoothing out the covers on the folio's after I've cut the slots for the ribbon. The advantage of a teflon over a bone folder is that it doesn't leave shiny marks on your paper or book cloth like a bone folder will.
While I'm still getting used to the teflon I think it time it will become my preferred tool because it really doesn't leave a mark at all. I have plans to purchase a mircospatula from Dennis Rudd to add to my collection very soon.