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 drill and hole cutter can be adjusted as you need.
Automatic step feed device can automatically discharge the scrap step by step.
The device of resistance indicator can detect the resistance force while cutting, the operator may replace the cutters in time to prevent them from being over worn out by this installation.
Drill sleeve set and clamp set of hole cutter are designed with rapid-adapter which can be replaced rapidly to streamline production.