theres a 120mm in the front, 80mm on the side that is EXTREMELY weak, u can only feel air if your hand is 1in from the fan. Also have a PCI slot fan that sucks out air.
They are compound action action tin snips (notice there are 2 pivots, it makes them cut very thick material)
The ones I have are from Wiss (one of the best) I have had a pair for 30 years and they still cut good. The red handle ones are designed to cut straight and left hand circles. They have them at HomeDepot for like $14.
The fans look big because the motor assembly (center section) is smaller to permit more airflow. Those are the scythe ones, Silenx fans are similar as well.
I like Dremels too, BUT they cost just way too much to use to make big cuts