straight plunge line on a knife?

[STIHL301]

Beginner knife maker here. Ive been making knifes my hole life just simple ones tho.
Now that i wanna try and making some nices knifes. I was wondering how you professionals make nice straight plunge lines and what tools you use to make them. Thanks for the help!

 

[colrhino]

uh, what's a plunge line? this from a non-kinife-maker, obviously, but I always love to learn about things I'm interested in.....

 

[no clever name]

You should post in the hobby section on GON. There are 10+ local knife makers on there.

 

[sharpeblades]

Practice-Practice-Practice