October 17, 2012 · 6:00 PM
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A Disc-detainer (or disc lock, disk lock) is a lock design that uses rotating discs as locking components. In most designs the discs interface with a sidebar when properly rotated to allow them to actuate the locking bolt. Disc-detainers are primarily associated with Abloy locks, but ABUS, Kryptonite, and many knock-off brands have begun making them, too.
As always, there is a beginner class at 6PM for 30 minutes if you have never picked. Pick sets are available to borrow, and are for sale for $20, cash or charge. The annual membership fee is not required to attend meetups.