The ceiling fixing system is specifically designed for overhead drilling as well as horizontal or vertical positions. Height adjustable from 1.7 m to 3 m to suit all your needs. Quick 60 mm motor mounting plate compatible with most motors. Double crank gear system: in addition to the standard 1:1 option, a second crank with 2:1 reduction greatly facilitates drilling large diameters, reducing operator effort. Automatic spring locking allowing easy angle adjustment thanks to integrated return system. Aluminum column combined with steel teeth for a lightweight yet durable product, with precise graduation even after intensive use