FAQ  •  Register  •  Login
UKLockpickers.co.uk Lockpicking supplies such as Lockpicks, tools, and more! COMMANDOLOCK.COM Military grade padlock systems lockpickshop.com A source for lockpicking supplies such as lockpicks, locksmith tools, and more!

Anti-Drilling/Bumping

<<

LockManipulator

User avatar

Active Member

Posts: 593

Joined: Wed Jan 11, 2012 6:33 pm

Location: California, US

Post Mon Feb 20, 2012 6:41 pm

Anti-Drilling/Bumping

What are some specific examples that high security locks use to prevent drilling and bumping? And what are the weaknesses of these methods for the locks that incorporate them?
<<

barbarian

Active Member

Posts: 370

Joined: Thu Mar 27, 2008 3:08 pm

Post Mon Feb 20, 2012 7:14 pm

Re: Anti-Drilling/Bumping

I'm no expert, but locks often have a small hardened pin or ball bearing that is located in the area you would need to drill. You can see it on Medeco locks, they have three little rods that protect the shear and they have the little half moon hardened inserts too. Most or maybe all have a hardened ball pressed into the end of the sidebar. Locksmiths sometimes drop a small ball bearing into the mounting holes too.

Hardened steel or stainless steel pins or disks will make it harder to drill. Not that it will stop a serious attempt at drilling, but it will slow down the operation and make it more difficult.

Try to make it difficult enough that a thief will think it is too hard to drill and seek an alternative.
<<

LockManipulator

User avatar

Active Member

Posts: 593

Joined: Wed Jan 11, 2012 6:33 pm

Location: California, US

Post Mon Feb 20, 2012 7:19 pm

Re: Anti-Drilling/Bumping

So if it's a mortise cylinder, then would placing ball bearing in front of where the screws are located be good? so anyone trying to drill out the screws would hit the bearing.
<<

Riyame

Keeper of the Bests / Supreme Overlord of Small Format Interchangeable Picking Nightmares

Posts: 2164

Joined: Sun Jul 24, 2011 11:16 am

Location: Canada

Post Mon Feb 20, 2012 7:28 pm

Re: Anti-Drilling/Bumping

Yes, Medeco actually gives you the ball bearings and says to put them in the holes as part of the installation instructions.
PhoneMan: I always knew I'd say something stupid and it would be someone's sig
macgng: i am an equal opportunity pervert
macgng: aww fuck thats goin in someone sig :-(

If life gives you melons, you might be dyslexic.
<<

xeo

User avatar

Catministrator
Catministrator

Posts: 2180

Joined: Mon Jul 19, 2010 9:30 pm

Post Mon Feb 20, 2012 7:36 pm

Re: Anti-Drilling/Bumping

Hardened inserts
Hardened keypins and drivers
Ball bearings (to make the drill bit spin the ball and thus prevent further drilling)
Longer and stronger springs to push down harder on the drivers. Trioving does this especially.
Anti-bump pins such as the Ilco or Master type
Certain sidebars stop bumping (unless the key has the correct sidebar milling).. Medecos can be bumped however with code-setting bumpkeys.
Image
The code is hidden in the tumblers. One position opens the lock, another position opens one of these doors...
http://www.youtube.com/xeotech1

(ノಠ益ಠ)ノ彡┻━┻

░░░░░░░░░░░░░Image
<<

Violaetor

User avatar

Active Member

Posts: 250

Joined: Fri Jan 13, 2012 8:46 am

Location: Ontario, Canada

Post Mon Feb 20, 2012 8:02 pm

Re: Anti-Drilling/Bumping

MTL

Two anti drill ball bearings on the top at the right, with two anti snap bars running across the top.
Image

Anti drill bearing in the 2nd from left chamber inside the plug, key is at 0 degrees.
Image

Anti drill rod in the 4th from left chamber inside the plug, key is at 260 degrees CW.
Image

Anti drill rod in the 3rd from left chamber inside the plug, key is at 280 degrees CW.
Image
Image
Looking to get something made? Send me a PM!
<<

LocksmithArmy

I've Been Banned!!
I've Been Banned!!

Posts: 1416

Joined: Thu Oct 15, 2009 9:14 pm

Location: Knoxville TN

Post Mon Feb 20, 2012 8:13 pm

Re: Anti-Drilling/Bumping

that "anti drill ball bearing 2nd from the left" on your second picture... its not necissarily for drill protection, its a passive pin... if it happens to be made of hardened steel... woohoo, but its for preventing unauthorized key duplication..

for starters, putting drill protection there will do the lock no good, noone would drill ther, it wont grant access to the lock.

and another point, are those ball bearings in the first pic or rods going down, i cannot see a point in putting drill protection so close to the top/bottom of the lock, its not protecting any vital point, but if they were rods it would protect the pin chambers from being drilled with a large bit.

or am im missing comething completely
Image
Pokey wrote:"Come and get me, loser! Spankity spankity spankity!"
<<

Violaetor

User avatar

Active Member

Posts: 250

Joined: Fri Jan 13, 2012 8:46 am

Location: Ontario, Canada

Post Mon Feb 20, 2012 9:32 pm

Re: Anti-Drilling/Bumping

The ones at the top of the top/bottom of the lock are to protect the retaining screw, I think, hard to see in the pic but they are sitting down inside - not riding on top, albeit only about 1/8 of an inch. But then again I'm neither European nor a locksmith.
Image
Looking to get something made? Send me a PM!
<<

LocksmithArmy

I've Been Banned!!
I've Been Banned!!

Posts: 1416

Joined: Thu Oct 15, 2009 9:14 pm

Location: Knoxville TN

Post Mon Feb 20, 2012 9:42 pm

Re: Anti-Drilling/Bumping

aaah that would make sense...
Image
Pokey wrote:"Come and get me, loser! Spankity spankity spankity!"
<<

LockManipulator

User avatar

Active Member

Posts: 593

Joined: Wed Jan 11, 2012 6:33 pm

Location: California, US

Post Tue Feb 21, 2012 3:16 pm

Re: Anti-Drilling/Bumping

thanks for the pics and the replies!

Return to Lock Bumping

Who is online

Users browsing this forum: No registered users

Don't forget to visit our sponsors for all of your lockpicking needs!
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Grop
"CA Black" theme designed by stsoftware