Drill bit / hole saw size for bilige fitting??

[CarFanatic]

What size dril bit / unibit/ hole saw size do Ineed to drill the hole for my blowsion bilge fitting??

 

[DR3]

match the fitting to a bit:cool2:

i think its 1" but not sure

 

[turbohatch3]

i think its 7/8"

 

[2lick]

i drilled mine 2hrs ago and used a 1 inch.... 7/8 would work to it would almost thread in... but thats good i suppose....

haha i didnt have a drill bit the size for my bypass so i reamed out a 1/4 inch hole and then put in a 1//4 inch sanding drum on my dremel and cut it to size in like 2 seconds.....

 

[CarFanatic]

so 1" you guys using the blowsion one?

 

[Phill]

haha i didnt have a drill bit the size for my bypass so i reamed out a 1/4 inch hole and then put in a 1//4 inch sanding drum on my dremel and cut it to size in like 2 seconds.....

Thats the way I end up doing mine.....