Joe Kertzman 
Grind a Blade the R.J. Martin Way: Knife Sharpening Techniques & Tips 

Author R.J. Martin, whose knives are some of the most popular and sought-after in the industry, instructs on flat- and double-hollow-grinding knife blades. Martin been featured in BLADE® Magazine with increasing frequency, and here’s your chance to learn his methods for blade grinding. You won’t be disappointed.

عن المؤلف

Joe Kertzman has authored 12 editions of the Knives annual book, as well as the Art of the Knife, BLADE’s Guide to Making Knives and four editions of Sporting Knives. Joe is also Managing Editor of BLADE Magazine.