What size drill bit do you need to install a Yale lock?

You actually need two hole saws, a 3/4 for the latch and a 1 3/8 or 1 1/2 for the lock body. The instructions will tell you which, and in fact in Home Depot, Rona and similar stores, you can buy a "Lock installation Kit " with an arbor and both holesaws for about $9 - 12
You actually need two hole saws, a 3/4 for the latch and a 1 3/8 or 1 1/2 for the lock body. The instructions will tell you which, and in fact in Home Depot, Rona and similar stores, you can buy a "Lock installation Kit " with an arbor and both holesaws for about $9 - 12