The standard external square of Momento’s 1/4”, 3/8”, 1/2” and 5/8” extensions, universal joints and adapters has a plunger retainer. All larger external squares have a through pinhole.
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.