@slaw is exactly right -- use the Xacto and take it slowly taking care to remove the shavings as you go. Getting a drill anywhere near an LP is a recipe for disaster -- one slip and the whole thing is ruined, not to mention it is nigh impossible to ensure you have the LP centered.
btw the same method can be used to move offcenter LPs by expanding the center hole (assuming you use some sort of clamp to stop the LP wandering)
Regarding spindle diameters they do vary which is why both my alignment protractor (AS SmartTractor) and clamp (Durand) come with interchangeable spindle adaptors
btw the same method can be used to move offcenter LPs by expanding the center hole (assuming you use some sort of clamp to stop the LP wandering)
Regarding spindle diameters they do vary which is why both my alignment protractor (AS SmartTractor) and clamp (Durand) come with interchangeable spindle adaptors