FatMax Retractable Utility Knife Sporting Goods Proprietary Mach-Blue™ Armor Plating is

Proprietary Mach-Blue™ Armor Plating is a super hard surface that retains sharper cutting edges

RESISTS CORROSION: Nickel plated bars

#420 stainless steel blades

Our small lockbacks provide extra portability without sacrificing knife durability or function

Cut Materials: Brick

FatMax Retractable Utility Knife Sporting Goods Proprietary Mach-Blue™ Armor Plating isStanley Fatmax, Retractable Utility Knife, Blade Wiper Removes Excess Dirt & Protects Knife Blade, Clamp Eliminates Blade Wobble for More Control, Ergonomic Design For Ease With Soft Touch Panels Grips, Pop Up Blade Dispenser Supplied With Fatmax Blades, Push Button Blade Change.