Maybe. Maybe. You dont know if it will unscrew... the old bolts are not stainless and usually after 3 or 4 years there is too much corrosion to get the oldies out. SO, we brought the tool rather than risk it. I would be very surprised if those things would unscrew.
Kimmmmyyyy J. and I had to snip the old chain out cus it just wasn't right... 1/2 inch bolts worth 10,000 pounds down to a $1.29 coldshut rated to 900 pds when brand new (years ago). The only way to upgrade the system to at least two rings worth a lot more than that was to remove the old and start over again. Hopefully the new stuff will last a very long time.