If pipe-cleaners or bristle brushes won't do the job, this Neerup item will help clear out the toughest build-up or blockage from a shank. It consists simply of an 11/64"/3mm thick length of stainless steel, chisel-shaped at the tip and cut with a loop-shaped handle to allow for better leverage and control.

Length from base of handle to tip: 3.42"/87mm

Do not operate while drowsy or impaired, aim away from face, etc.