Chinese Standard: GB/T 6135.3-2008

Parallel shank twist drills—Part 3:The types and dimensions for parallel shank long series twist drills

MOD  ISO 494:1975

全国刀具标准化技术委员会(SAC/TC 91)

GB／T　6135的本部分规定了直柄长麻花钻的型式和尺寸。
本部分适用于直径1.00　mm～31.50　mm的直柄长麻花钻。

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