What kind of key blank should I use if I need more keys? Blair April 10, 2019 20:20 Updated Please use the SC1 key blank for additional keys. Related articles How many scheduled PIN Codes can I create? What purpose is the button on the back of the Alfred lock? How do I check the status of my DB series lock? How do I enable privacy mode? Is my Alfred DB series Smartlock waterproof? Comments 0 comments Please sign in to leave a comment.