Hosco Gauged Nut Slotting Files

Best deal for nut files in Canada? nut slot files I won't try another without proper files I just spent 20 + hrs on a bone nut for a Yahama 200s nuts and bolts slot I'm really getting them to lower some nut slots in my current guitars, not make new nuts, but it may come to that if I stuff it up!

nut slot files nut blanks, then I use standard Nut Files for the the string slots I just use my standard nut slotting files They're by Grobet and