OPNUS-Memolis.LA with security thumbturn cover, Unlocking the entrance door

"I left my keys at my parents' house."

This is a common occurrence after the holidays. According to the client's declaration, the key was not security-resistant, and it was planned to be a normal unlocking work.

If you check the cylinder collar of OPNUS MEMOLIS, it will move freely, so it will be a thumbturn for LA.

When I tried the first shot, I thought it was a thumbturn for LA, but there was a sense of incompatibility with the roundness. I wonder if this old property has a B5 security thumbturn.

When I checked with the camera, the aluminum cover was firmly attached. It's a pretty big cover. It seems that the client himself was not aware of the cover. It was probably installed by a previous occupant. After all, I was able to improve it by unlocking the J-shaped tip jig.