10pcs 3.175mm Shank 3 Edge Engraving Bit Set Tip 0.1mm 20/30/45/60/90 Degrees Carbide PCB Machine Router Bit 3D CNC Milling Bits

10pcs 3.175mm Shank 3 Edge Engraving Bit Set Tip 0.1mm 20/30/45/60/90 Degrees Carbide PCB Machine Router Bit 3D CNC Milling Bits

Aliexpress UK