After introduction, the jaws are opened fully by turning the knurled knob at the proximal
end. The jaws then occupy a position at right angles to the shaft of the instrument.
Grasping the instrument by means of the comfortable finger grips provided permits
the application of traction to the gland without trauma. Turning the knurled knob in the
opposite direction closes the jaws for easy removal. The instrument has ample strength
to meet any conditions encountered in this field.