ALOA Glossary Study Aid
A Glossary of locksmithing terms & definitions. It's also an aid for studying for the (mandatory) ALOA L-00 exam


Term   Definition 
  160 prep   n. a standard door preparation which consists of a 2-1/8" cross-bore with a 2-3/8" backset, and a 1" edge-bore with a mortise 1" wide and 2-1/4" high

(hint: tap spacebar)

Glossary contents Copyright 1989, 1990, 1995, 1996, 1997, 2000, 2001, 2002, 2003, 2004, 2005, 2006 Lock Industry Standards and Training Council (LIST Council)
The original PDF (272k)
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