1. This spark plug is an accessory suitable for petrol saws and garden machinery. It belongs to the type of motorcycle spark plugs and has a delicate design. 2. The electrode is made of common materials to ensure stable ignition performance. Its cylinder diameter is 14 mm, and the spark plug gap reaches 19 mm, which can precisely match relevant mechanical equipment and provide reliable ignition support for two - stroke chain saws, lawn mowers, etc., ensuring the effective and stable operation of the equipment. 3. The across - flats dimension is 53 mm, the thread size is 14 mm, and the engagement length is 53. These precise specifications ensure a perfect fit between the spark plug and the equipment, allowing for easy and secure installation. 4. There are multiple specifications available, including L7T, D8TC, W8TC, BM6A, CM5H, A7RTC, CM6A, F7TC, CMR6H, A7TC thread, A7TC, etc. These various options can meet the specific needs of different petrol saws and garden machinery. Whether it is a small household petrol saw or a large professional garden machinery equipment, a suitable specification can be found. 5. Whether for daily garden pruning work or professional garden maintenance projects, this spark plug can be a reliable ignition partner for garden machinery, bringing convenience and efficiency to garden work.