[119] DIY How To Increase Your Lock's Security By Optimizing Security Pins
16:20
[130] Basic Locksmithing: American Lock 1100 Series Picked, Decoded, Time Saved!
12:13
How Security Pins Work
15:10
Episode 4: How To Rekey Your Lock & Add Security Pins
19:24
[77] How To Decipher Different Pin States and Interpret Key Bitting
20:01
An introduction to making security pins and challenge locks
18:54
Making Spool Pins - Check Pins - Lock Picking Made Harder
12:26
[112] DIY How To Disassemble and Upgrade Your Clear Acrylic Padlock [Great Learning Tool]
18:12