Conveniently to mount on twist drill or hole cutter for automatic drilling and Center-free drilling.
Adjusting wheel of cutting force control device can be used for regulating the force of cutting. Therefore, the cutting force for twist dri
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Conveniently to mount on twist drill or hole cutter for automatic drilling and Center-free drilling.
Adjusting wheel of cutting force control device can be used for regulating the force of cutting. Therefore, the cutting force for twist dri
