现行

DIN 336

Drills for use prior to tapping screw threads
小直径螺纹用钻头直径

2003-07-01

现行

KS B ISO 2306

나사 태핑용 드릴
自攻螺钉螺纹前使用的钻头

2022-12-29

现行

KS B ISO 2306(2017 Confirm)

나사 태핑용 드릴
在攻丝之前使用的钻头

2012-12-11

现行

ISO 2306-1972

Drills for use prior to tapping screw threads
在攻丝之前使用的钻头

1972-07-01

现行

BS ISO 3438-2013

Subland twist drills for holes prior to tapping screw threads
在攻丝螺纹之前 使用带底麻花钻钻孔

2013-06-30

现行

GB/T 6138-2023

攻丝前钻孔用阶梯麻花钻
Subland twist drills for holes prior to tapping screw threads

2023-09-07

现行

ISO 3438-2013

Subland twist drills for holes prior to tapping screw threads
在攻丝螺纹之前的Subland Twist Drills for孔

2013-05-02

现行

GOST 28320-2017

Сверла спиральные ступенчатые для отверстий под метрическую резьбу. Размеры
攻丝螺纹前先进行钻孔 外形尺寸

2017-07-14

现行

DIN 8378

Subland twist drills with parallel shank for holes prior to tapping screw threads
攻丝螺纹前用于钻孔的直柄小带麻花钻

2006-11-01

现行

DIN 8379

Subland twist drills with Morse taper shanks for holes prior to tapping screw threads
攻丝螺纹前孔用莫氏锥柄小带麻花钻

2006-11-01