The thread size: M10x1. Durable adapter is 17,5 cm long and it's made from one piece of aluminium (none plastic parts inside!). This device is very useful In adjusting ignitions of a variety of engines.
4792 Top Dead Center Stop,18mm Bolt Style for Finding Top Dead Center-18 mm x1.5
Top Dead Center TDC tool Timing Gauge 14 mm thread high quality in best price
Top Dead Center TDC tool Timing Gauge 18 mm thread high quality in best price
Capri Tools 10 mm Brake Bleeder Wrench, Angled Double Box End, 10 mm, Silver