What tools do I need to drill holes? Blair April 10, 2019 19:13 Updated You will need the following tools to drill holes: Drill 2 1/8" Hole Saw 1" Boring Bit 7/64" Drill Bit 3/8" Drill Bit Chisel Hammer Related articles Do I need to drill holes in my door? Is my door suitable for installation? How do I use the one-touch unlock functionality? Can I keep my existing mechanical deadbolt installation with my Alfred DB series lock? Handing Switch Comments 0 comments Please sign in to leave a comment.