Light AB:About 5 mm hole about 2 mmAbout 6 mm hole about 2 mmAbout 8 mm, hole about 2 mmAbout 4 mm, hole about 2 mmAbout 6 mm, hole about 3 mmAbout 8 mm hole about 2.5 mmThe hole is about 2 mm and the oblate is about 8 mmAbout 10 mm, hole about 2.3 mm