English to German Other Other Handicrafts, Paper Cutting

"Hold the Swivel Knife at the textured area of the handle.

Carefully insert the tip of the blade at the beginning of a channel with the cutting edge facing towards the cutting direction.

Hold the Swivel Knife straight up and press firmly against the template."

Text is an instruction about how to use swivel knifes on paper or photos to cut shapes.

What is a swivel knife in German?

Thank you for your help!