Fishtail end mills are our new favorite bit! They're awesome for getting clean edges on thin material and for making pockets with flat bottoms. We now use them more often than any other kind of bit.
We recently published a project using them here. We chose a fishtail end mill for this project to ensure a clean edge on the acrylic numbers.
They would also be the perfect bit to use in the Drunken Woodworker's inlay project that we shared last week.
We also just released an End Mill Starter Set that includes fishtail bits, as well as a few others to cover just about any situation. Convenient!