Cat. No	Model	Connection For O.D
S12-460-011	D648-02	4 / 6 / (1/4") 6.35 mm
S12-460-015	D648-08	8 / (3/8")9.52 / 10 mm
S12-460-019	D648-14	12 / (1/2") 12.7 / 14 /16 mm