Re: Type of Drag?
That is actually a disc drag, though a simple and sorta wimpy form. (should work fine for most all trout, bass or panfish, but I wouldn't dare use it on steelhead, salmon, or bonefish)
The lever/knob on the outside controls how much pressure with which the shiny disc is pressing against the white plastic pads. (looks like teflon) Be sure to keep it clean, especially free from grit. A little sand in between that shiny disc and the teflon pads could cause big problems.