Bolt Dissassembly Tool Recommendation

I need a disassembly tool that will work for Garand and M1A. Who has the best? THANKS

I use the M10 tool, you can remove the firing pin from an M1 rifle bolt with taking the rifle apart or just remove the internal bolts, The operating rod spring provides the force as the tool is inserted into the chamber and turned

https://www.youtube.com/watch?v=qYM8JnI2CJg

http://www.brownells.com/gunsmith-to...l-prod917.aspx