Reply by LeeMills

To be clear, I was referring to the 35mm Bowl Jaws as being useless to me.
On the other hand the 35mm Spigot Jaws are great and I use them fairly often.
Nova Bowl Jaw series are measured from the exterior but the Spigot Jaws are measured from the interior.
The 35mm spigot jaws can hold down to 35mm or about 1-3/8 where the 35mm Bowl jaws hold down to about 3/8”. They make it easy don’t they? :)

-- We cannot solve our problems with the same thinking we used when we created them. Albert Einstein