Jinjie Spring Collet from China Model: 17.5-d 20.3-d Jinjie TG Collet Model: TG75-d TG100-d TG150-d Jinjie DIN6388A EOCA EOC Collet Model: EOC6A EOC8A EOC10 EOC12A EOC16A EOC20A EOC25A EOC32A EOC40A EOC50A Jinjie DIN6388B EOCB EOC Collet Model: EOC16B EOC20B EOC25B EOC32B EOC40B EOC50B