How Sargent’s 6300 Large Format Interchangeable Core Works

2020-03-23T09:35:33-04:00 March 23rd, 2020|All, Cores and Cylinders|

https://www.youtube.com/watch?v=ygFleM64nDI 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 only core, they’ve actually manufactured 4 different core designs. It is, however, is the newest design they’ve manufactured so you’ll sometimes see/hear it referred [...]

How Yale’s Large Format Interchangeable Core Works

2020-03-02T06:17:25-05:00 March 2nd, 2020|All, Cores and Cylinders|

https://www.youtube.com/watch?v=sKBwarkq18k 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 for this core in November of 1961. In the book The Core of the Matter, AJ Hoffman mentions that Yale also offered an Oval-shaped [...]

How Schlage’s Modular Cylinders Work

2020-02-22T21:51:44-05:00 January 20th, 2020|All, Cores and Cylinders|

https://www.youtube.com/watch?v=HLEluOi-3R8 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 cylinder, or a rim cylinder, or a mortise cylinder, depending on the components used and their configuration. For example, instead of carrying 6 individual [...]

Cores and Cylinders Library Update

2019-08-05T12:45:21-04:00 August 2nd, 2019|All, Cores and Cylinders, Tools Update|

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 & Door Hardware ASSA High Security Locks BEST Access Systems Corbin Russwin DORMA Americas Falcon GMS Industries, Inc. Hager Companies Kaba Ilco Corporation Killeen Security [...]

Corbin Russwin Access 3 Pinning Worksheets Added to Tools

2019-05-13T08:59:42-04:00 May 13th, 2019|All, Cores and Cylinders, High Security, Tools Update|

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 is a pinning worksheet for Corbin Russwin Access 3 conventional cylinders. This worksheet contains a pinning chart and combinating rules for Access 3 KIK/KIL, mortise, [...]

Using TMK Registers

2020-02-23T09:04:02-05:00 December 4th, 2018|All, Cores and Cylinders, Master Keying|

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, Jerome Andrews brings up the following point: As you write a new TMK, how do you know that you haven't already used it for some [...]

Inside U-Change Cylinders

2018-11-18T09:58:11-05:00 November 19th, 2018|All, Cores and Cylinders|

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 as a Kwikset SmartKey.  Let me be clear on this from the start - internally, the U-Change is nothing at all like a SmartKey. Yes, the front of [...]