Its is important to note that the scale provided is for a close idea of the diameter of the desired ball size. It should not be referred for an exact measurement by the users. The insert tip should be adjusted to the given reading for achieving the desired size of the ball. Pls note the scale is a radius reading, which means that for any set parameter on this scale, you will get double of it as the ball diameter. Example- If you set the scale at a measurement of 15 mm, you will get a ball size of diameter 30 mm.
The attachment has both Imperial as well as Metric graduations on either size of the attachment. This item is in the category "Business & Industrial\CNC, Metalworking & Manufacturing\Metalworking Equipment\Metalworking Lathes". The seller is "tools-shop2020" and is located in this country: IN. This item can be shipped worldwide.