For those seeking a reliable cutting solution, the Jonard Tools Replacement Blade is an essential accessory compatible with CST-1900 and CST-4000 slitting tools. Engineered from high carbon steel, this blade is designed for longevity and can efficiently cut through a wide range of jacket materials, including PVC, rubber, and polyethylene. Its spring-loaded mechanism allows for a versatile 90-degree rotation and easy adjustment to accommodate various round cable sizes, making it suitable for slitting cables with diameters ranging from 3/16 inch to 1 1/8 inch. This replacement blade not only enhances the functionality of your cutting tools but also ensures precision and safety in your cable management tasks.