HORUSDY Pack Of 100 Utility Knife Blades, Box Cutter Blades Replacement with Dispenser, SK5 Carbon Steel

Cutting edges additionally induction hardened, cutting edge hardness approx Ca 60 hrc | Special tool steel, burnished and with narrow head | Ground, very sharp cutting edges without bevel for flush cutting | Extremely smooth movement for minimum operator fatigue | With opening spring and restricted opening