WFHBH CWN-HF CWX BH GradeInsertExt. ToolholderInt. ToolholderThreadingGroovingDrilling ToolTechnical Reference QC12-STCR/L-CHPExternalgroovingandthreading head, with high pressure coolant capability 1 LH HBL Right hand (R) shown. 2 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) 3 SPARE PARTS Designation Clamping screw Wrench O-ring QC12-STCR18-CHP CSTC-4L100DL T-1008/5 ORSS-0454.5X1.0NBR70 QC12-STCL18-CHP CSTC-4L100DR T-1008/5 ORSS-0454.5X1.0NBR70 4 5 6 7 8 9 Reference pages: Inserts → 6-36, QC-Shanks → 3-60, Standard cutting conditions → 6-40 Parts for coolant hose → 3-61 6-35