KNIPEX 44 11 J3 internal circlip (retaining ring) pliers, 40โ100 mm rings
circlip
Use it
(import "parts/hand-tool/HT-CIRCLIP-J3.ik" as p)
In a design on ink: ask your agent for it by name, or by what it must be.
Frame of reference
Tip ends z=0, tips at x=+/-spacing/2, y=0; jaw/pivot/handles +z.