ITEM NAME:10pcs CNC PCB Rotary Burr Carbide End Mill Engraving Drill Bits 1.3mm to 3.175mm 10pcs Car.(3) 10pcs end mill engraving bits for CNC/PCB rotary burrs from 1.3 to 3.175mm. End Mill x 10(different sizes: 1.3, 1.4, 1.5, 1.6, 1.8, 2.0, 2.4, 2.5, 3.0, 3.175mm). Color: Silver.