10pcs 3.175mm Shank 1.0mm Micro PCB Drill Bit Print Circuit Board Carbide CNC Engraving Tool

 

Handle diameter: 3.175mm

Tool diameter: 1.0mm

Fit for: PCB drilling machines, engraving machine, CNC and high precision special drilling equipment.

 

Drill has a large scraps discharge space,little resietance and smoothly during the scraps dischange.

Using high quaility materials and fine grinding process makes bit more sharp cutting edge, reduce cutting force and broken drill and improve the quality of hole wall.

The cutting edges strictly avoid partial hole,ensure the quality.

Long life in normal working condition.