Tool needed

[TNRGreene]

My son just called & said I do not have this can someone tell me what it is so I can pick it up on my way home?
He said large allen head to remove the flexplate. I know I have it but I better get another. What exactly is it? I hope NAPA has one.
Thanks

 

[x MadMAX DIESEL]

pretty sure its a 14mm hex key socket., not sure if it would be tamper proof prolly not but id get it to be sure

 

[super diesel]

Yes. 14mm hex (not tamper proof though). Best to get it with a 1/2" drive for a socket wrench for retorquing it back down latter too. Big pressure needed.