Check the listing for details. 60 Replacement Blades For Lutz 35701#357 Quick Change Heavy Duty Utility Knife. Color: Silver, Condition: New. Listed at 15.95 USD. 60 Replacement Blades For Lutz 35701#357 Quick Change Heavy Duty Utility Knife 60 Pack Utility Knife Blades, SK5 Steel Heavy Duty Box Cutter Replacement Blades with Plastic Case, Standard Size Razor Blades for Most Standard Utility Knives About this item Package includes: the package comes with 6 boxes of fixed knife blades, and each box contains 10 pieces blades,meet your needs for use and replacement. Fits most standard & fixed utility knife perfectly Made from heavy duty premium SK5 steel, which is industrial high carbon steel , SK5 steel has higher hardness 60-63HRC and wear-resistance for maximum durability.5 times longer service lifetime than other general carbon steel Each utility knife blade was engineered with a precision-honed edge and 26°cutting angle which make the blade sharp enough to cut.There is a layer of anti rust oil on the blades to prevent dust and rust. These blades are extremely sharp and cut through lots of materials super easy without any hesitation.Ideal for cutting cardboard, rubber, leather, linoleum, rope, soft metal and most DIY projects, designed for general purpose cutting. Your satisfaction is our greatest honor and responsibility! If you have any problems or questions, please feel free to contact us. we will offer you a best solution as soon as possible for sure!