QSR-G3/8-12 QSR-G3/8-8 QSRL-1/2-12 QSRL-1/2-3/8-U QSRL-1/4-6 QSRL-1/4-8 QSRL-1/8-1/4-U QSRL-1/8-3/16-U QSRL-1/8-4 QSRL-1/8-5/32-U