5 Piece, Drywall Utility Knife Blade, Designed To Maximize Cutting Performance & Durability In Drywall & Sheet Material, Optimized Grind Angles Deliver 2 Times Sharper Blade & Improved Cutting Precision, Micro Carbide Dispersed Metal Delivers Longer Life Than Standard Carbon Blades, Precision Grind Process Removes The Burr From Cutting Edge For Cleaner Cuts, Engineered To Fit Milwaukee & Most Standard Utility Knives.