TOSTEM UR.TE0(LIX)＋TE0(LIX), cylinder breaking and unlocking and cylinder replacement

"Lost key, Unlocking the entrance door"

The owner of the target residence is a fairly elderly grandmother.It was a surrogate call from her neighbor for help.It is a detached house case. (This is a case with a high possibility of unlocking)

Since I am an elderly person, I need to explain in detail how to work.I explained the case that led to the unlocking and the need for replacement.

After that, I gave some quotes and got approval, but it took about 60 minutes to start the work.

Now,
I tried to unlock the gap with the tool I adjusted the other day, but the door is thick (about 40 mm) and the gap is quite narrow, so I gave up on non-destructive unlocking.After obtaining consent again, it was finally broken.The grinder is likely to hit the handle, so proceed with drilling.
A rotating file is also good, but this time I will try using a hole saw for the first time in a while. (Hole saws are expensive jigs as consumables because their teeth are quickly damaged. I don't use them much because the cost of consumables increases.)
This hole saw jig has reduced cutting efficiency.Once used, it will not be a free cut. (The number of disposal jigs has increased again)

As I dug into the center hole, I bumped into a rotating part.It seems that countermeasures have been taken, so change to a rotating file.

It took a while because the locks were broken in two places, but it was finally unlocked.

After that, replace it with U9.TE0 and it's done.Up to this point, it takes 2 hours, but the actual working time is about 1 hour.It takes about 30 minutes to explain the new key and how to use it.Grandma seemed to be tempered, but her neighbor was involved and the explanation was over.

Elderly people in the neighborhood also came to see us on the way, so it was good that we were able to do business while handing over business cards.