1pcs O Flute Carbide End Mill 4mm 6mm Shank Blue Coating CNC Router Bit Single Flute Spiral End Mill Cutting Engraving Bits Milling Cutter(4x15x45L)

Four Wing Slotting Cutters1pcs Solid Carbide CNC Spiral O Single Flute End MillsShank diameter: 4mm 6mm Cutting edge diameter: 4mm 6mmCutting edge length: 8-42mmTotal length: 40-70mmPackage include:1pcs Single Flute Spiral Cutter

• Four Wing Slotting Cutters
• The end mills have a nano blue coating for enhanced hardness.The O-flute design ensures efficient chip evacuation reduces clogging and provides smooth cutting performance. This extends tool life making them more durable and wear-resistant than standard end mills.
• Our helical O-flute (single-flute) end mills are well-made with burr-free surfaces to ensure excellent engraving and milling performance.
• It is made of monolithic tungsten steel which is more heat- and wear-resistant than other materials and not easy to break.
• Suitable for engraving/cutting/carving/milling/slotting/engraving on MDF ABS PVC Acrylic Nylon Resin Plastic Density Board Wood Plywood Hardwood and other materials.
• When using the lower cutter head to cut arcs or grooves be sure to slow down the feed rate to allow more time for chip removal chips are discharged downward sharp edge smooth and delicate cutting surface no burrs.