It has permanent magnet base, unique cutter structure, effective spark control and portability. It suited to special environment to drill.
它具有可手控的永久磁性基座、独特的刀具结构、有效的火花控制和极大的便携性，适用于特殊环境下的钻孔作业。
It has permanent magnet base, unique cutter structure, effective spark control and portability. It suited to special environment to drill.
它具有可手控的永久磁性基座、独特的刀具结构、有效的火花控制和极大的便携性，适用于特殊环境下的钻孔作业。
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