4V is a carbon steel with amazing edge retention and high toughness 7.5" Rosewood&Zebrawood Gyuto @HRC60 $225.00 6.5" Rosewood&Maple Petty @HRC 60 Sale Price: $125.00 Original Price: $200.00 Sale 6" Purpleheart&Maple Santoku @HRC 60 $225.00