Hole + Slot Angle Brackets

good question ! Hole: is a circular cutout can be a through hole or extend only upto a blind depth we can also have a stepped hole this figure might help

A T-slot nut that is placed in the T-groove of a machine tool and used together with a bolt ·A screw hole passes through ·Materials: S45C

hole slot A DETAIL in the “hole, slot and plane” geometrical constraint (which is one of the commonest forms of the “six point support” mentioned in Sir George

zorro slot By default, even though you place a point for the midpoint of the slot, the slot itself is previewed as horizontal