Now thank you all guys and ladies!
Upon reading all this I am quite overwhealmed...indeed I can feel the sensation of so many excellent leathermasters turning their attention to reply to my humble question. I thank you all very much!!!
To add my 5 cents to the conversation - it now seems to me that the most important and correct tool for doing the fringe is patience and determination and when those qualities become armed by a sharp edge of whichever kind then shredding revolution starts.
And since this looks like the true description of the case I am bound to become a buddist monk and become very patient, but as far as I know they do not readily accept girls into their holy ranks, so I must take a knife that I have and upon dampening the backside of leather press the ruler down and gently make a clean cut with a fresh blade.
I must say that I have been using a Stanley knife almost since the beginning of my more serious leather working. Before that I was using a more traditional to Russia angle shoemaker knife which looks like this one here :
I love my stanley knife and it is exactly the same as Karl from England have shown in a previous page, unexpected difficulty arouse just months ago when they stopped importing spare stanley blades to Russia... I mean we have the other ones that fit the knife but they are thin and they wiggle and become dull rather soon strop em or not...
Rotary knife is something I have been always cautious about, probabbly because it looks as if it can go faster then I can think.
ANd the round knife is a dream for me... I wish I had one... someday I will, but I am always shy to it as I am not too sure on how to use it...
And the knifes that have a breakaway blade segment I use never as I do believe they are flimsy and in the end those are utter shite they are indeed even for office purposes ...
I thank you all again, your works are great, I wish I knew a fith of what some of you know about building shotgun chaps, and at east a tenth of other leather secrets, indeed so, since my friends ask me for chaps I say okey someday and then try to figure it out, but when I see what say Chuck Burrows has to offer his customers I understand that there are many trade tricks ahead of me.
I hope I will be able to contribute here someday, and I also hope that we'll become friends with you, sorry if I do not appear everyday here.
Best of luck!