These fishtail bits are great for fine detail and inlays. The downcut tip design creates a cleaner edge on the topside of the sheet when cutting through materials. The flute design works well with high speed spindles and high feedrates. They are also good for cutting thin materials since the downward force tends to keep the material flat.
Downcut bits do particularly well on materials like wood and plywood that can splinter when pulled up.
Please note that these bits are solid carbide, but are super sharp and brittle – they may break more easily than most end mills while milling, or if dropped.