Sargent 6300 Large Format Interchangeable Core History Sargent began producing their proprietary large format interchangeable core, the 6300, in the late 70s. It isn’t Sargent’s…
Yale Large Format Interchangeable Core History Yale began producing their proprietary interchangeable core format, commonly called Yale LFIC, in 1960. They would receive a patent…
Introduction In July of 2010, Schlage started transitioning their cylinders to a modular design. This design allowed one cylinder to be used as a key-in-lever/key-in-knob…
We have updated the Cores and Cylinders page in the Library using our new format. We have new literature and manuals for the following manufacturers: Arrow Lock…
We have added two new worksheets to our Pinning and Decoding Worksheets Tool. Both worksheets are for Corbin Russwin’s Access 3 platform. The first worksheet…
Last month Ilco launched their Peaks Authentic YouTube channel. This channel features a growing collection of servicing videos related to Peaks Preferred products. The instructor…
Design The Sargent Degree key system is actually comprised of 3 sub-systems: Degree Level 1 Degree Level 2 Degree Level 3 Degree Level 1, or…
Introduction TMK abb. top master key Top Master Key n. the highest level master key in a master key system In Fundamentals of Master Keying,…
We’ve recently added a new pinning worksheet to the Pinning and Decoding Worksheets page in the Tools section. Under the SFIC tab, you will find two…
The following article was written by Gordon, a locksport enthusiast from Arizona. Note: I frequently come across people who still think this lock is the same internally…