I was just wanting to confirm the size in imperial for your product the 1in. Diameter 1/8ips Threaded Brass Ball - Unfinished Brass - I'm looking for a 1/8" wide threaded hole for these.
No, a 1/8ips is NOT the same as 1/8in. A 1/8ips pipe generally has an outer diameter of about 3/8in To get a 1/8in hole you will want to look at 6/32 threaded balls, you can find those here
For a better understanding of pipe thread vs inches please refer to our article about pipe threading here