What size hole for Yam digital Tach?

[andymach23]

I'm about to flush mount the multi function tach that I got with my F40 Yam 4 stroke. I was wondering what size of hole I need to drill to fit it.<br /><br />Thanks<br /><br />Andy

 

[andymach23]

Re: What size hole for Yam digital Tach?

It's ok. I was able to measure it. <br /><br />Thanks<br /><br />Andy