Normal bone drill: variable speed control without step, reliable, economical price.
普通骨钻：无级变速，性能可靠，经济实惠。
Disclosed is a novel bone drill which belongs to the medical appliance technical field.
新型骨钻，属于医疗用具技术领域。
A kind of orthopedics guide drill with a positioning device is used to guide the direction of the bone drill in drilling.
一种带定位器的骨科导钻，用来引导骨钻钻孔方向。
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