The SP-Micro Spill Plug is an essential shop companion designed to prevent costly fluid loss and environmental contamination during maintenance. Specifically engineered for small-bore applications ranging from 1mm to 13mm (3/64" to 1/2"), these tapered plugs provide a tight, friction-fit seal for hydraulic lines, fuel hoses, and pneumatic pipes. Made from high-quality, oil-resistant rubber, the SP-Micro is ideal for precision work on small machinery, automotive fuel systems, and intricate hydraulic valve blocks. By plugging open lines instantly, you keep your workspace clean and prevent dust or debris from entering sensitive components.