Post by
boro drift »
https://forums.nicoclub.com/boro-drift-u103655.html
Wed May 27, 2009 5:07 pm
I don't think it's that big! Probebly 8mm, but I'm unsure. Depending on the Heli Coil kit you get, it may or may not come with a drill bit. Just a tap, coils, and a install tool. But the tap will say what size drill bit to use.
Once you have installed the Heli Coil, your original fitting will screw right in.