6pc Step Drill Spiral Groove Conical Cone And Milling Bit Set 4-30mm

Save $28.00

Sale price$11.99 Regular price$39.99


  • The combination of 6 specifications, 3 step bit and 3 serrated bit can meet your diversified needs

  • and improve work efficiency.

  • The combination of multi-grid drilling bit and the sharp edge of the sawtooth bit, convenient drilling

  • to remove cutting chips, prevent iron or sawdust flying, so that the drilling cutting faster,

  • more accurate, more smooth, more efficient.

  • High quality bearing steel, titanium plated surface, oxidation resistance, no rust, wear resistance, long service life.

  • The most commonly used bit size is lightweight and takes up little space.

  • It can be stored in your tool box for easy and quick use.

  • Titanium coating ensures easy cutting of steel, aluminum, copper and plastic and wood,

  • as well as many other types of metal plates including tile, concrete, tile, brick, wood, plastic, glass, steel,

  • aluminum, copper and plastic and wood, as well as many other types of metal plates,

  • Including ceramic tile, concrete, ceramic tile, brick, wood, plastic, glass, masonry and so on.

How to use:

  • 1. Connect the drill bit to the electric drill.

  • 2. Use other tools to measure the diameter of the desired hole size.

  • 3. Then select a step drill of the appropriate size.

  • 4. Install the step drill correctly on the electric drill, finally align with the target hole perpendicular

  • to the workpiece, and start drilling to the desired size.


    • 100% brand new with high quality

    • Style: 1 set With Opp Bag/1 set With Box (Optional)

    • Material: Bearing Steel

    • Size: 4-12 4-20 4-32 / 3MM 6MM 8MM

    Package Included:

    • 6PCS Titanium Plating Drill Bits

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