Need to add a lock mechanism to my sliding patio door.

A quick learner from ID says:
Attached are photos for my door pull. The exterior pull has an indent where a lock might be added but I'm not sure. OPpen to suggestions and guidance.
Thumbnail of the uploaded file named exterior door pull.jpg
Thumbnail of the uploaded file named both pulls.jpg
Thumbnail of the uploaded file named interior pull.jpg
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Casey from SWISCO responded:


Based on your photos, you should be able to punch out the circle in your exterior pull and install the 82-310 key lock. Take a look at the related videos for more assistance with this project. Thanks for posting! 

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