Help Changing out a Deadbolt Lock


Old 11-11-08, 08:27 PM
Thread Starter
Join Date: Nov 2008
Location: Cedar Rapids, IA
Posts: 1
Help Changing out a Deadbolt Lock

I'm changing out an old deadbolt at a friends house and ran into an problem I can't figure out how to solve.

The new deadbolt needs a 2" hole in the door where the old deadbolt had a 1.5" diameter. The door is a metal exterior door with a foam core and I can't seem to get a normal hole drill bit to cut into the metal door. The other issue is that since the hole is already cut for 1.5", there is nothing in the hole to keep the 2" hole bit in place to make the cut anyway. Is there a special tool for cutting a bigger hole in a metal door when a smaller hole already exists?

Sponsored Links
Old 11-11-08, 09:01 PM
GlobalLocky's Avatar
Join Date: May 2006
Location: USA
Posts: 940
The simple fix here is to clamp two pieces of wood (larger than the existing hole) over the inside and outside of the door...then measure and drill with correct size holesaw.

Your alternative could also remove the 2" plate on the back of the lock cylinder (some of them come off) this will allow you to fit the lock without requiring the modification.

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Thread Tools
Search this Thread
Display Modes