Shimomura-kogyo Tsunouma Sujihiki Slicer Knife 270mm (TU-9013) Length: 390mm / Blade length: 270mm / Thickness: 2.0mm Blade material: stainless steel superalloy / molybdenum-vanadium steel Cutting edge hardness: HRC57 plus or minus 2 Pattern charge: stop tack and tack back two percent this through, strengthening black wood flat pattern, this one with ferrule