Anyone who has ever removed an ejector from a bolt face knows it is a three handed operation. That's where the AR-10 bolt disassembly tool from Schuster Manufacturing comes in. A threaded shaft holds pressure on the ejector, allowing you to use your two hands to remove the retaining pin without launching the ejector across the room. This tool is a real time (and stress) saver if you do this kind of work often. It can also be used to hold the bolt for a number of other operations as well.