Z-LION PCD-21 tria media circa PCD trapezium stridor est grave officium tunicae remotionis instrumentum ad tunicas crassas et elastomericas tollendas sicut epoxy, urethane, polyurethane, polyaspartico, acrylico, glutino residuo, etc. Instrumentum habet 3 dimidium rotundum PCD et unum. bullam portionis sustinentis.Cum patella trapezoide typica venit, ascendi potest ad varietatem pavimenti molares per 3 foramina in laminam trapezium.Disposuerat opus in directione specifica, vel horologico vel counterclockwise.