All-metal construction with pressure level mechanism, achieving any chosen setting and automatic locking of the spindle in a flash.
Micro adjustment by spindle center wheel, 2 knee joints, spigot diameter 4mm, all commercial technical pens, such as pencil, colour pencils, ball pens, fineline mechanical pencils, can be used by attaching a 2mm ∅ adaptor.
Working range up to 370mm ∅, with extension bar 610mm ∅, mat satin nickel plated, lead box, in transparent cover box. Material brass.