Metric Drill bits

[Skyfox]

I have checked all of the usual suspects to find a 13.6 mm drill bit with no luck. Does anyone know a store that I can walk into in the Northwest suburbs that sells metric drill bits? I am T R Y I N G to install the GM MTX subwoofer and it calls for four holes drilled at 13.5 mm. I know I could doctor a 1/2 inch hole but I want to avoid that if I can.
Thanks

[KidKilowatt]

I have checked all of the usual suspects to find a 13.6 mm drill bit with no luck. Does anyone know a store that I can walk into in the Northwest suburbs that sells metric drill bits? I am T R Y I N G to install the GM MTX subwoofer and it calls for four holes drilled at 13.5 mm. I know I could doctor a 1/2 inch hole but I want to avoid that if I can.
Thanks

Could you find a 17/32" ?

[KidKilowatt]

Could you find a 17/32" ?

You could try calling a Grainger Store, they are all over, I'd call first and see if they have them.
Or try Fastenal, they are all over also, try calling first.

[Skyfox]

I found 1/2 and 9/16, but I don't recall seeing a 17/32". That would do it. I think I am kidding myself anyway. By the time I get done with a portable drill, the hole will be an egg shaped just under 3/4"! But it will be a really nice egg shape!

[KidKilowatt]

I looked for this size before, to drill a hole in my CAI tube for my mustang. I'm a machinist and we didn't even have the size at work. I opened up a 1/2 hole using a dremel. But Grainger or Fastenal may just have it.

[TonyNo]

9/16" is 14mm if that 0.4mm won't kill 'ya.

[Toasty]

according to the all mighty Google, Advance Auto parts may have a 17/32 bit... but it looks to be like $25... lol

[Skyfox]

Thank you. I will check tomorrow.