I have a extra that came with a core I bought and it specs out on The rimac spring tester.
It would be 25.00 shipped but I wont be able to get it out until thursday because I will be out of town.
3 % over using paypal or credit card.
JH Machine Co.
7472 South State road 29
Frankfort In 46041
1 765 566 3083 [email protected]