HSS CNC Straight End Mill 4 Flute Milling End Cutter Drill Bit 2-40mm
HSS End Mill Cutter 4-Flute Milling Cut Bits. Flute quantity: 4 flutes. 40mm 40x20x63x145mm. Suitable for die block steel, wrought iron, carbon steel, alloy steel, chisel tool steel, general iron material etc.