As a result the hole saw wobbles recklessly all over the place.
Hoe to enlarge a lock hole in a wood door.
A hole saw is completely ineffective when used to enlarge an existing hole.
But when you re enlarging a hole there is no wood for the pilot bit to bore into.
How to enlarge the door knob hole in a wood door.
When you re drilling a new hole the pilot bit guides the saw into the wood and keeps it cutting on course.
The hole diameters are 2 and 1 8 inch and 1 inch respectively.
The last thing you want to use is a jigsaw.
You need two different hole saws to create the perfectly round holes in the face of the door and the smaller hole in the edge of the door.
This technique can be used to enlarge other holes as well including faucet holes on a kitchen countertop.