BRS DIY Kalkwasser Dripper kit

[fishscale1]

Has anyone ever setup the BRS Kalkwasser dripper kit?
If so, what bit did you use in order to drill the holes on the containers?

 

[MERKEY]

BRS DIY Kalkwasser Dripper Kit

Build your own kalkwasser dripper with the DIY Kalk Dripper Kit from Bulk Reef Supply. Just choose the storage container with lid that works best for you. Kit Contains: 16” Long - 1/4” Clear Acrylic Tube 1/4” Mur-lok Inline Ball Valve 2 - 1/4” Mur-lok Push Connect Bulkhead Tank Adapter 2 -...

www.bulkreefsupply.com

They have a video that they have and why use a drill.