WFHBHWFHBH CWN-HFCWXCWN-HFCWX BHBH QC12-STCR/L External grooving and threading head LH HBL Right hand (R) shown. Designation CWN CWX H B LH HF HBH HBL WF Insert Torque* QC12-STCR18 0.33 3 12 12 19.5 12 3.9 17.9 6 TC*18R... 1.2 QC12-STCL18 0.33 3 12 12 21 12 3.9 18.3 9 TC*18L... 1.2 The right hand insert (R) is used for the right hand toolholder (R). The left hand insert (L) is used for the left hand toolholder (L). *Torque: Recommended clamping torque (N∙m) SPARE PARTS Designation Clamping screw Wrench QC12-STCR18 CSTC-4L100DL T-1008/5 QC12-STCL18 CSTC-4L100DR T-1008/5 QC12-STCR/L-CHP External grooving and threading head, with high pressure coolant capability LH HBL Right hand (R) shown. Designation CWN CWX H B LH HF HBH HBL WF Insert Torque* QC12-STCR18-CHP 0.33 3 12 12 19.5 12 4.2 19.3 6 TC*18R... 1.2 QC12-STCL18-CHP 0.33 3 12 12 21 12 4.2 19.3 9 TC*18L... 1.2 The right hand insert (R) is used for the right hand toolholder (R). The left hand insert (L) is used for the left hand toolholder (L). Through-coolant head *Torque: Recommended clamping torque (N∙m) SPARE PARTS Designation Clamping screw Wrench O-ring QC12-STCR18-CHP CSTC-4L100DL T-1008/5 OR SS-045 4.5X1.0 NBR70 QC12-STCL18-CHP CSTC-4L100DR T-1008/5 OR SS-045 4.5X1.0 NBR70 Reference pages: Inserts → 5-4, QC-Shanks → 3-60, Standard cutting conditions → 5-25 Parts for coolant hose → 3-61 5-16