Made from high grade carbide steel rods, Siser® Blades are polished to razor sharp perfection for precise cutting. Compatible with the Siser® Blade Holder, 45° Blades click in simply thanks to the housing’s inner magnet. With a 45° angle, the perfect amount of blade edge is exposed for almost all projects and materials, including: HTV, Vinyl, Cardstock, and other lightweight materials. If you need an all-purpose blade that can accomplish most projects, then the 45° Blade is for you!