1/5/7PCS M3-M16 HSS Counterbore End Mill 4Flute Pilot Slotting Tool for Milling. 10PCS 3Edge Pyramid Engraving Bits 3.175mm Shank 0.1-0.3mm CNC Milling Cutter. The milling bit is used for processing the groove, side and plane of wood, carbon steel, alloy steel, die steel, tool steel, cast iron and titanium.
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