Chinese Standard: GB/T 6135.1-2008

Parallel shank twist drills—Part 1:The types and dimensions for small type twist drills with oversize parallel shank

全国刀具标准化技术委员会(SAC/TC 91)

GB/T 6135的本部分规定了粗直柄小麻花钻的型式和尺寸。
本部分适用于直径0.10 mm～0.35 mm的粗直柄小麻花钻。

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