I'm not sure but I believe it is between 19 and 19.5. I bought it from Cue&things and they didn't list it either. If interested I could find out.
It is a excellent cue in new condition
Thanks for the kind words Doug.
I'm not much of a photographer but the Bocote is really nice looking in person also. It's not all fussy looking like my pics, unless you have bad eyes but then Doug can help you with that.
You know I'm going to have to buy some calipers. I bought it form Cuesnthings.com and they don't have the sizes I'd guess its 12.5 to 12.75mm but could be a little bigger but it doesn't feel like 13 to me. I can find out if you really need to know (heck I guess I need to know for listing) the tip isn't anything special It's not layered. As a matter of fact I was going to replace it as it seems kind of soft.