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  • croatia Triangle/Round/Straight Shank Titanium Step Drill Bits High Speed Steel Drill Cone Bits HSS Spiral/Straight/Double Flute Step Drill Bits

    Product Description

    Triangle/Round/Straight Shank Titanium Step Drill Bits High Speed Steel Drill Cone Bits

    Step drill is mainly used for drilling thin steel plates within 3mm. One drill bit can be used instead of multiple drill bits. It can process holes of different diameters according to the needs, and can realize the processing of large holes at one time without changing the drill bit and drilling positioning holes. 

    Material: tungsten carbide / HSS / HSS Co / steel
    Coating: No / TIN or as you request
    Hardness (HV): 1475~1675
    Hardness (HRC): 45/50/55/58/60/65
    Surface Treatment: Bright finished, Tin-coated, Cobalt-coated, Black-oxidized
    Shank: Round Shank, Three-Side Shank, Hex Shank, Hex Shank With a Step
    Flute: HSS Spiral/Straight/Double Flute Step Drill Bits
    Application: Aluminum, Iron, Carbon Steel, Stainless steel, Plastic, etcThe product can be used in automobile processing, aerospace, sheet metal processing, electrical installation and maintenance and other industries. At the same time, the product is easy to carry and can be used for high-altitude operations with hand drills and other tools.

     

    size

    steps

    Length

    4-12

    5

    65

    4-12

    9

    65

    4-20

    9

    75

    4-30

    14

    100

    6-38

    12

    100

    6-26.7

    8

    75

    4-39

    13

    107

    6-32

    8

    75

    5-28

    7

    69

    6-30.50

    9

    80

    6-37

    12

    100

    4.8-10.65

    5

    54

    6-25

    7

    65

    6-32

    9

    76

    6-40

    16

    105

     

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