Product Description: The Summa 55° Thick Material Drag Knife Blade (Part Number: 391-358) is a specialized industrial consumable engineered for the most demanding digital cutting applications. Specifically designed for processing heavy-gauge substrates, this blade is the definitive choice for cutting sandblast resist, floor graphics, and other thick specialty vinyls that challenge standard blade geometries.

Crafted from premium-grade tungsten carbide, the 391-358 offers exceptional wear resistance, maintaining its razor-sharp edge between 10 and 50 times longer than conventional steel blades. Its 55° angle provides the necessary mechanical leverage to penetrate thick materials while the swivel design allows for fluid movement around complex corners without lifting, ensuring consistent depth and tracking accuracy. This blade requires the Summa Thick Materials Blade Holder (391-363) for proper installation and performance. Whether utilized on the Summa F Series flatbeds or the S2 D Series roll cutters, this blade delivers professional-grade, burr-free results in high-volume production environments where uptime and edge quality are critical.

Summa OEM-Quality tungsten carbide Blades at Wholesale Prices