How to define lines on beard?

[kinch42]

Hello,

I need a better solution to define lines in my beard (I'm using a straight razor but the line are not that straight), I've read that I should use a zero overlap razor.

Do you think the "Wahl Professional Balding Clipper" would solve my problem?

Thanks you!

best regards,

 

[barberbob]

A wahl detailer

 

[kinch42]

A wahl razor edger is not better?

 

[Nishy]

I just mark out the lather and then place the edge of the straight to my beard. Some also use an oil so they can see everything clearly