I broke my motorbike key the other day and I decided to have a new one cut. When I think back to about 10 or 15 years ago, there used to be a man or lady using a file to make the key with hundreds of movements up and down and it took them about 15 minute to finish the job and it used to cost about 3,000Vnd. But like in the picture below, you can get your key done in a few minutes by machine and it's the perfect size and it costs you from 5,000Vnd up to 20,000Vnd. The quality and and the look of the key is much more professional than in the past and you can see this business alot in Hanoi like groups of mushrooms around street corners.
I talked to the guy who cut my key and he told me that he earns about 100,000Vnd per day which means he cuts about 20 keys everyday. That's not a bad income. This job is not physically demanding as he only sits on a chair for the whole day. However, ocassionally he has to run very fast to escape from the police who do not allow people to trade on the pavement. I think they bribe the street police to sit there, who knows?
There are many key blanks for you to choose and they are not very different in price.