Chemically-blackened steel circlips. External for use over shafts. Internal for use inside bores. Allows rotation but prevents lateral movement. Includes assorted internal sizes 12 to 20mm and external sizes 6 to 25mm. Handy storage case with compartments. Chemically-blackened steel circlips. External for use over shafts. Internal for use inside bores. Allows rotation but prevents lateral movement. Includes assorted internal sizes 12 to 20mm and external sizes 6 to 25mm. Handy storage case with compartments.