If applicable, enter the nubbin width. This value is only required for facing sketches 1c, 1d, 2 and 6. Note that for sketch 9 this is not a nubbin width, but the contact width of the metallic ring.
If applicable, enter the nubbin width. This value is only required for facing sketches 1c, 1d, 2 and 6. Note that for sketch 9 this is not a nubbin width, but the contact width of the metallic ring.