It will cost , but I am sure , Ray at Seyco will overnight them to you.....I only use the Steve Good adapter to loosen the clamps when i can't get my hand on them right, I think you will be better off not using them to tighten....Randy is right about the aluminum being a little soft and wearing when over tightened .......After replacing both the upper and lower on my Ex 21 about 6 months ago , I saved up my pennies and now have one of each in my parts bin so I dont get stuck in the middle of a project....Good luck!