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  • ◆ 圆板牙 ROUND DIES

    圆板牙适用于外螺纹加工。
    圆板牙采用合金工具钢,按国家标准
    GB/T970.194制造,切出螺纹精度为6g级(应符合国家标准GB/T196197)几何精度高,切削性能好。
    圆板牙可以手工和中、低速机械攻削铜、铝等有色金属和中、低碳素钢。
    Round Dies are suitable for extemal threading .
    The round dies made of alloy tool steel are manufactured in accordance with Chinese GB standard
    GB/T970.194 and the threads cut with the round dies will be within an accuracy of the bh grade (i. e. to the Chinese GB standard GB/T196197),with accuracy geometric featwes and excellent cutting characteristics.
    The round dies can be used for hand operation as well as for medium and law speed machine taping nonferrous metals like copper aluminium etc.and medium and low carbon steel.

    ◇ 公制粗牙 METRIC COARSE

    ◇ 公制细牙 METRIC FINE

    公称尺寸
    Nominal Size

    螺距
    Pitch
    mm

    外径
    Outsize Diameter
    mm

    厚度
    Thickness
    mm

    M3

    0.5

    20

    5

    M3.5

    0.6

    20

    5

    M4

    0.7

    20

    5

    M5

    0.8

    20

    7

    M6

    1

    20

    7

    M7

    1

    25

    9

    M8

    1.25

    25

    9

    M9

    1.25

    25

    9

    M10

    1.5

    30

    11

    M11

    1.5

    30

    11

    M12

    1.75

    38

    14

    M14

    2

    38

    14

    M16

    2

    45

    18

    M18

    2.5

    45

    18

    M20

    2.5

    45

    18

    M22

    2.5

    55

    22

    M24

    3

    55

    222

    M27

    3

    65

    25

    M30

    3.5

    65

    25

    公称尺寸
    Nominal Size

    螺距
    Pitch
    mm

    外径
    Outsize Diameter
    mm

    厚度
    Thickness
    mm

    M3

    0.35

    20

    5

    M3.5

    0.35

    20

    5

    M4

    0.5

    20

    5

    M4.5

    0.5

    20

    5

    M5

    0.5

    20

    5

    M5.5

    0.5

    20

    5

    M6

    0.75

    20

    9

    M7

    0.75

    25

    9

    M8

    0.75

    25

    9

    1

    M9

    0.75

    25

    9

    1

    M10

    0.75

    30

    11

    1

    1.25

    M11

    0.75

    30

    11

    1

    M12

    1

    38

    10

    1.25

    1.5

    M14

    1

    38

    10

    1.25

    1.5

    M16

    1

    45

    14

    1.5

    M18

    1

    45

    14

    1.5

    2

    M20

    1

    45

    14

    1.5

    2

    M22

    1

    55

    16

    1.5

    2

    M24

    1

    55

    16

    1.5

    2

    M27

    1

    65

    18

    1.5

    2

    M30

    1

    65

    18

    1.5

    2

     


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    机用丝锥用于在机床上加工通孔的内螺纹,刃部由高速钢制成,螺纹经过磨制。

    板牙适用于外螺纹加工,采用合金工具钢,几何精度高,切削性能好。

    复合中心钻适用于一次钻成带护锥60°的中心孔,材料为高速钢。

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