Mikeny

I am looking into buying a Osborne#70 round knife or Osborne #71 head knife. Other than the shape /size of the two what is the difference between the knifes? What are the pros and cons of each? I would appreciate any info that could be shared.

I am thinking of buying the 440C steel Master Tools Deluxe Round Knife from Weaver. Does anyone have or used this knife? Are they any good? Did the knife come ready to use or need extensive sharpening? I am also looking to buy a Master Tools French Edger. Are they any good? Do they come ready to use? Is the cutting bevel on the bottom or in the top channel (like the cheap ones from Tandy)? Thanks for your help.