Tom from SWISCO responded:
July 10, 2020
Hey, Joe. There's no need to drill a hole. Looking at your first photo, the hole where the balance hooks is square shaped. I'll go out on a limb and guess that it's 1/4" x 1/4". Is that accurate? If so, you can pop our 26-200 screw plug right in there. That will allow you to use our screw-on type balances. |