This pack of 5 high-precision replacement blades is a must-have for any DIY mechanic or professional installer. The 3/8" Z cold knife blades are designed for cutting through a variety of materials, making them a versatile addition to your toolkit. The Equalizer brand ensures quality and durability, while the manufacturer part number Z9 ensures compatibility with a wide range of equipment. Made in the United States, these blades are a reliable choice for any automotive application.