Comparison of 4 different CNC endmill router bits

The chip out of some CNC router bits was annoying, so i ordered some different types and made this test. The candidates: 1.) straight cut router bit 2.) up cut router bit 3.) down cut router bit 4.) up/down cut router bit Like standard router bits for handheld machines, the straight cut type seems to work great on my CNC. All four router bits are from aliexpress-Seller "CNC Cheap Store": straight cut: https://de.aliexpress.com/item/5pcs-4... down cut: https://de.aliexpress.com/item/5pcs-3... up-/down cut: https://de.aliexpress.com/item/2pcs-U... upcut: https://de.aliexpress.com/item/Free-S...