A: This item can be used on denim but it will not perform as well as a larger 60mm blade due to the blade prominence and thicker fabric.
A: Lay the material out flat that you would like to cut, and roll the cutter over the fabric. Similar to how you would use a pizza cutter. It is recommended to use a cutting mat to protect the work surface from getting scratched by the blade.
A: Thank you for contacting Fiskars. Yes, we make a 45mm scoring blade that fits this rotary cutter.