Detent Circlip
From DISCO4.COM Knowledge Base
Discovery 3 Detent Circlip replacement guide
http://www.disco3.co.uk/gallery/albums/userpics/35469/Detent%20Circlip%20How%20to%20guide.pdf
Discovery 3 Detent Circlip replacement guide
http://www.disco3.co.uk/gallery/albums/userpics/35469/Detent%20Circlip%20How%20to%20guide.pdf