This is drilling machine for the A shape ladder, it can drilling all the holes in one time .
So no need drilling by manually one by one . it greatly save the time .
Drilling Head :drilling both side up and down.
Steps: Total 6 steps, it contains 24 pcs of the drilling head.
Max length of ladders: 1.8 meters
Holes: Up have two holes, back have one hole or two holes for option .
Step rungs and ladder width are both adjustable .
Drill Motor :by cylinder control.