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Twist Drills

For Steel Drilling Solid Carbide Twist Drill Bits

Brand Name: ZLY TOOLS
Material: Tungsten Carbide
Type: Twist Drill Bit
Helix angle: right hand spiral 30degree
Point angle: 135°
Cutting Length: 3D/5D/8D
Coating: TiAlN
Workpiece material: For steel include Carbon Steel, Mould Steel, Tool Steel, Stainless Steel
Coolant supply:external and internal available as well as high perforance series
Product feature:
1 Optimised point geometry compatible for various steel materials drilling;
2 balanced hardness and toughness of carbide material giving consideration to both processing efficiency and safety
    Cutting diameter range: 3.0-20.0mm
    Cutting Lenghth: 3D/5D/8D
    Coolant supply: External and Internal coolant through
    HP series: available,for double feed rate and longer tool life
    Packaging Details:
    1.Each carbide drill bits with a plastic pipe pack,10 pieces per set then in a carton

    Dc
    m7

    Lc

    L1

    L2

    L5

    d1
    h6

    mm

    mm

    mm

    mm

    mm

    mm

    3.0

    14

    62

    20

    36

    6

    3.1

    14

    62

    20

    36

    6

    3.2

    14

    62

    20

    36

    6

    3.25

    14

    62

    20

    36

    6

    3.3

    14

    62

    20

    36

    6

    3.4

    14

    62

    20

    36

    6

    3.5

    14

    62

    20

    36

    6

    3.6

    14

    62

    20

    36

    6

    3.65

    14

    62

    20

    36

    6

    3.7

    14

    62

    20

    36

    6

    3.8

    17

    66

    24

    36

    6

    3.9

    17

    66

    24

    36

    6

    4.0

    17

    66

    24

    36

    6

    4.1

    17

    66

    24

    36

    6

    4.2

    17

    66

    24

    36

    6

    4.3

    17

    66

    24

    36

    6

    4.4

    17

    66

    24

    36

    6

    4.5

    17

    66

    24

    36

    6

    4.6

    17

    66

    24

    36

    6

    4.65

    17

    66

    24

    36

    6

    4.7

    17

    66

    24

    36

    6

    4.8

    20

    66

    28

    36

    6

    4.9

    20

    66

    28

    36

    6

    5.0

    20

    66

    28

    36

    6

    5.1

    20

    66

    28

    36

    6

    5.2

    20

    66

    28

    36

    6

    5.3

    20

    66

    28

    36

    6

    …………
    Please submit your basic information, we will contact you as soon as possible!

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