Quick Attachable Drill Bit 5pcs
 
The hexagonal shaft meshes firmly with the connection part to prevent idling. Compared to general drill blades, shorter overall length and closer distance to the target enable easier targeting and handling. 
 
The obtuse cutting edge of the drill blade enables shallow drilling and drilling of holes without piercing even thin plastic boards. Compared with a sharp-edged blade, it digs more slowly, and holes are less likely to be distorted. Dug hole edges are clean and neat.
 
Quick Attachable Drill Bit 5pcs - Set A
Hexagonal shaft with a diameter of 4 mm and 5 drill blades with diameters of 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, and 0.9 mm.
 
Quick Attachable Drill Bit 5pcs - Set B
Hexagonal shaft with a diameter of 4 mm and 5 drill blades with diameters of 1.0 mm, 1.5 mm, 2.0 mm, 2.5 mm, and 3.0 mm.
 
Drill blades over 1.5mm have an extra cutting edge at the tip. With increased biting force, drilling can proceed with light power and without resistance.
 
*The extra cutting-edge design includes 4 drill blades of 1.5 mm, 2.0 mm, 2.5 mm, and 3.0 mm.