Review on Engraving Carbide Rotary Milling Cutter by Aries Boyce

These bits are cut very accurately at 16x magnification. They're inexpensive, so they're good when you're starting out with CNC engraving, and if they break, there's not much waste. I bought two beats for 40.00 and won't be using them until I feel more comfortable not doing stupid things and breaking them.