Anet A8 bed adjusting bolt holder

Adjusting bolt holder for aAnet A8 bed. Arrows show the way to turn to adjust the bed up or down. Pentagon shape allows to measure adjustment : 1 side of the pentagon rises or lower the bed by 0,1 mm.
Allows fast adjustments without having to think which way to turn bolt and how many turns : go up until bed touches nozzle, then back 2 sides of the pentagon.