All 3.5 spinners are the same, right? Wrong! While there are many similarities, some 3.5 class spinner blade styles have different “spin profiles” which can significantly change the presentation.
The most common “3.5 spinners” use a 3.5 size Colorado style blade, which is where the name “3.5” came from. Even so, most similarly sized blade styles use their own unique sizing scale. It’s the shape, contour, and length and width that makes the difference, rather than the number on the blade.
The term “3.5 Class” is used to identify spinners and spinner blades that are appropriately sized to fish well behind a 360° flasher.
Each of these 4 blades are considered 3.5 Class Spinners: