Chinese Standard: GB/T 1438.2-2008

Taper shank twist drills—Part 2:The types and dimensions for long Morse taper shank twist drills

全国刀具标准化技术委员会(SAC/TC 91)

GB／T　1438的本部分规定了莫氏锥柄长麻花钻的型式和尺寸。
本部分适用于直径5.00　mm～50.00　mm的莫氏锥柄长麻花钻。

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