The amount of penetration is fairly irrelevant. What is more relevant is whether there has been an ejaculation (while inside) or not.
Chat with our AI personalities
one inch is one inch; one inch dia refers to one inch diameter of a circle; it is still one inch
In word form, one twelfth of a foot is one inch.
With large diameters like that you will most probably need to insert a weld-on 12 inch - 10 inch reducer at the point where the reduction is required. The pipe and reducer perimeter edges should be bevelled, say 45 degrees, for good weld penetration especially if the pipe conveys fluid under pressure.
one inch
It is 67.5% of one inch.