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Standard
| GB/T 25672-2021 Hammer drill bit and shell hammer drill bit (English Version) |
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Detail of GB/T 25672-2021
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Introduction of GB/T 25672-2021
本文件规定了电锤钻和套式电锤钻的型式和尺寸、外观和表面粗糙度、位置公差、材料和硬度、性能试验、标志和包装等的基本要求。
本文件适用于在无金属夹杂物的混凝土、砖等材料上钻孔用的直径从5mm～52mm的电锤钻，以及在砖、砌块、轻质墙等材料上钻孔用的直径为25mm～150mm的套式电锤钻。
Contents of GB/T 25672-2021