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. 1/7/8pc 4Flute End Mill. chip removal performance, making the cutting tool and chip more stable.
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