This toolholder allows to mount external square tools of 20 mm - for left side or right side mounting. Therefore the fastening gib can be mounted below or in top of the tool.
The toolholder is reversible. This means that the tool can be mounted facing the left spindle or the right spindle.
The toolholder is equipped with two adjustable coolant nozzles - one for each mounting option: the tool facing the left or the right spindle.