Single S. Thomachot-style knife with two Grandchamps-style knives Posted on March 7, 2019May 17, 2019 by j aniano Three knives based on examples used by Eric Grandchamps and Stephane Thomachot. The upper pair have ebony handles and the bottom knife has a pernambuco handle. The blades are ground from antique straight razors. Both types are double bevel tools. The Grandchamps-style has a curved profile and the Thomachot-style has a straight profile.