Help to fit horizontal chicken nipples please

[Stacymh]

1. 
   Hi, I'm setting up my first coop and I have bought some horizontal chicken nipples so I can add them to a bucket to make my drinker. My problem is that I don't have a drill bit big enough (the largest I have is an 8mm) and they didn't come with any instructions. Does anyone know what sized bit I need to buy please?
   
   These are the nipples I bought http://www.solwayfeeders.com/products/side-mounted-nipple-pdr0032-c64.html
   
   Any advice would be gratefully received
   
   Thanks
   Stacy

 

[jetdog]

I used a 3/8 bit and screwed them in as much as I could by hand and then used a pair of pliers to snug them up with out stripping them out.

 

[Stacymh]

Brilliant, than you for your help I've managed it now.

Stacy

 

[chad-o]

With the tapered thread design as long as you can start them in the hole. They don't have to bottom out to seal.