they can be any of the four things a thumb rest usually rounded to fit the thumb, They can be really sharop and used for sawing lioke the ones on survival knives or as fred says there are knives made with the purpose of catching the blade and on some just decorations. on these i would have to say thumb rests.
they can be any of the four things a thumb rest usually rounded to fit the thumb, They can be really sharop and used for sawing lioke the ones on survival knives or as fred says there are knives made with the purpose of catching the blade and on some just decorations like these on mine. on these i would have to say thumb rests.