A simple way to hold the crankcase pulley so that you can loosen or tighten it. No expensive hard to find tools required, just a chain and breaker bar.
website:https://www.jhmindustry.com/
Shanghai Jian & Mei Industry and Trade Co., Ltd. is the company which manufacture and export fasteners and metal hardware, founded in 2006, with import-export authority. Now, 80% products export to all over the world and 20% sell in domestic market.