Summa 36° Tangential Blade, 5-Pack $230.00 Quantity discounts available QuantityPrice SKU: 390-534 Summa 36 degree tangential knife blades for Summa T series vinyl cutters and plotters. Pack of 5 blades. Ship 2 Available Pickup in Store - FREE! Select Store to check availability. Quantity -+ Add to Cart Print Details Summa tangential knife blades for Summa T series vinyl cutters and plotters. Tangential blades create sharper corners and more precise cuts.36 Degree ... Details Back DetailsSumma tangential knife blades for Summa T series vinyl cutters and plotters. Tangential blades create sharper corners and more precise cuts.36 Degree blades cut material up to .010" thick.