11-921 Stanley Blades,Heavy duty utility blades,L 2-7/16" Please log in to see price or purchase this item Quantity discounts available QuantityPrice SKU: STN11921 Qty On Cart Features Utility knife blades are constructed of carbon alloy steel. Stanley patented S3 Technology means blades stay start sharper and stay sharper. Features Back FeaturesUtility knife blades are constructed of carbon alloy steel. Stanley patented S3 Technology means blades stay start sharper and stay sharper.