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Prepare to learn everything you can about mortice locks. This book has a lock per page, including drill points, view through keyhole,lever and bolt sides. With so many locks in use it's essential you can approach the job with confidence. Knowledge really is power in this instance, the power to do the job professionally.
Over 30 years experience working in the field went into the making of these manuals. Set comprises TWO manuals, one for Curtained locks, one non-curtained. Over 250 locks covered. KNOW YOUR WORK.