Easton nocks of either size will be a slightly tighter perhaps some would say too tight of a fit on a
Beiter nocking point than that of Beiters own nocks, and there will be more vertical movement possible with a
Easton nock in a Bieter nock point too.
The outside diameter of a
beiter No.2 nock point is 2.88mm, the gape of a No.2 beiter nock 2.90mm, the gape of a large groove easton nock 2.75mm the length of a Beiter nock point (the bit the arrow actually clicks into) is 5.25mm the thickness of a beiter nock that fits into this gap is 4.90mm the thickness of a easton pin nock is 3.92mm. I've done the measuring you do the maths.