Amazon
Internal square 25.4 mm (one inch) - External square 20 mm (3/4 inch) Use for your safety only with suitable rings and locking pins L [mm]: 75 BA: BA.36, Manufacturer: Facom
Internal square 25.4 mm (one inch) - External square 20 mm (3/4 inch) Use for your safety only with suitable rings and locking pins L [mm]: 75 BA: BA.36, Manufacturer: Facom
Zoro Tools
High-grade steel and heat treated couplers for impact use.