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Metal Drills HSS Straight Groove Step Drill Bit Cone Titanium Coated Wood Cutter Woodworking Tools 3-12mm 4-12mm 4-20mm 4-32mm

From £24.86
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  • Description


    Brand: ROSSONIX

    Material: High quality HSS steel

    Function:Deburring, Chamfering, Cutting or Eexpanding holes

    Supporting tools: Pistol drill, Hand drill, Charging drill, Bench drill.

    Rotating Speed:

    4-12 speed:260-400
    4-20 Speed:180-240
    4-32 speed:90-160


    3-12mm Length: Approx. 7.9cm/ 3.11 inch
    4-12mm Length: Approx. 6.7cm/ 2.64 inch
    4-20mm Length: Approx. 7.4cm/ 2.91 inch
    4-22mm Length: Approx. 7.7cm/ 3.03 inch
    4-32mm Length: Approx. 102mm/ 4.01 inch

    Package Includes:

    1 x Drill Bit


    100% Brand New and High Quality
    Made from high quality HSS steel
    Ideal for using to cut holes in a variety of materials including steel, brass, wood, plastic, etc.
    Titanium coated to reduce mit and heat
    Heat treated and highly polished. Drills perfectly round holes in steel, brass, plastic, wood etc.
    3 sided shanks design in order to prevent slippage when in chuck
    Two flute design drives faster, smoother and cleaner cuts each step is clearly labeled with the depth diameter in steps


    Because of the outer diameter of each step of the step drill is gradually expanded,then the corresponding cutting resistance and linear velocity will also be gradually increased.
    Owing to the step drill is completely dependent on the inclined edge that is only with 1mm length,If the feed speed is too fast when drilling,it will be easily to be annealing caused by abrasion of the oblique edge.
    Please give a downward force when drilling, do not press down too hard to avoid the edge wearing.

    Suitable Material

    Workpieces with general hardness, such as wood, plastic, PVC plate, iron plate, plate thickness within 3MM. Please note that stainless steel and spring steel are not applicable. Not for quenching. (Water injection cooling while working, it can effectively extend the service life of the drill bit, especially in the case of continuous drilling)

    This product is compatible with various models

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