The SB-92 Standard Utility Blades are high quality steel and hold a very sharp edge that lasts longer than other brands. These are ideal for tough jobs and complement our industrial line of PHC utility knives. The SB-92 Blades have the universal two-notch design and fit most standard utility knives on the market. The blades are packaged in a box of 100 blades and placed into tucks of five.