SWISCO - The Replacement Hardware Authority

Need to Add Outside Keyed Lock to Sliding Glass Door Handle

A quick learner from San Luis Obispo, CA says:
I have a sliding glass door with a handle that appears to be your 82-005 with a 4 15/16 screw spread, installed new when my house was built in 2000. I want to add a keyed lock on the outside. The 8 1/4 inch long plastic pull on the outside is fully recessed into a 7 7/8 x 13/16 inch cutout on the outside of the door. The pull appears to have a scored circle on the inside and a structure for adding a lock. This structure is similar to a universal retrofit keyed door lock/pull kit I purchased but does not quite work. And if I could get it to work the outside handle of this retrofit kit protrudes so much the sliding screen would not have clearance. Can a lock be added to my existing recessed plastic pull, and do you sell that lock? Since this circle is scored only from the inside, would I drill it out for the lock face to pass through without harming the pull, or should it be punched from the inside? Do you have a replacement part for this pull in case I try to drill or punch it out for a lock but experience a problem? I have attached photos for reference. Thanks for your help.
User submitted photo of their door handle.
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Dave from SWISCO responded:
You could possibly consider installing our 82-310 key cylinder in your existing outside handle, but be careful as this outside pull is no longer made and cannot be replaced! You might want to drill out the key hole with a slow speed drill. You could also use a utility knife and cut around the hole. Just take your time.

To secure the key cylinder into the handle, you will need to use a screw similar to the 33-071 or 33-072. I can see in your photo the hole to mount the screw into the back side of the handle. Normally the 82-005 takes the 82-306 out side handle, but I don't know if it will cover the cut out in the patio door.
A quick learner from San Luis Obispo, CA says:
Thanks for the advice. I will try this with a slow-speed drill. In case I have a problem, is there a different handle set available with an outside pull that will be compatible with the existing 7 7/8 x 13/16 inch cutout in the door?
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Dave from SWISCO responded:
I'm afraid not. This setup is no longer made and nothing is quite the same size.
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