The back bolt drilling machine is a small device used for drilling holes in back bolt curtain walls, suitable for marble, granite, ceramic panels, honeycomb panels, high-density cement panels, various types of artificial fiber boards, etc.

The back bolt drilling machine uses an air pump combined with a vacuum conversion valve to fix the machining hole position. Through the sequential action of drilling and expanding the two handles, it drills out step back bolt holes with large inside and small outside.

Technical parameters:

Voltage: 220V

Power: 1400W

Drilling depth: 5-20mm (extended 50mm)

Drilling diameter: 7.2mm, 9mm, 11mm, 13mm