Looking for a daylight visible light with a very parallel beam.

I don't know much about flashlights so forgive me.

I work in film lighting and am often bouncing lights off of mirrors, CRLs, and magic bounce. It would be really useful to have a small pocketable flashlight that I could use to calculate the angle of insidence before setting up a big Arri 18k light.

Are there any flashlights that are bright and have a very narrow beam that I can use for this? Or would it make more sense to use a laser pointer (cautiously)?