1 STCR/L-18 Grade E xte r n al th read in g to o l h o l d e r WF B LF LH 2 HF H Insert HBH Right hand (R) shown. Designation H B LF LH HF WF HBH Insert STCR/L1010X18 10 10 120 18.5 10 10 4.5 TC*18... STCR/L1212F18 12 12 85 18.5 12 12 2.5 TC*18... STCR/L1212X18 12 12 120 18.5 12 12 2.5 TC*18... Ext. Toolholder 3 STCR/L1616X18 16 16 120 18.5 16 16 - TC*18... STCR/L2020X18 20 20 120 23 20 25 - TC*18... Use right-hand toolholders (R) with right-hand inserts (R); and left-hand toolholders (L) with left-hand inserts (L). SPARE PARTS Designation Clamping screw Wrench STCR... CSTC-4L100DL T-1008/5 Int. Toolholder 4 STCL... CSTC-4L100DR T-1008/5 STCR/L-18 5 Threading E xte r n al th read in g to o l h o l d e r, wi t h h i g h p re s sure c oola nt c a pa bilit y LF LF WF WF B B LH 5/16”-24UNF LH 5.3 5.3 5/16”-24UNF HF HF H H 1 6 1 L3 L3 Fig. 1 Fig. 2 HBH HBH Grooving Right hand (R) shown. Designation H B LF LH L3 HF WF HBH Fig. Insert Torque* STCR/L1212F18-CHP 12 12 85 18.5 17.5 12 0 /12 4 2 TC*18... 1.2 STCR/L1212X18-CHP (1) 12 12 120 18.5 17.5 12 0 /12 4 1 TC*18... 1.2 STCR/L1616X18-CHP (1) 16 16 120 18.5 - 16 0 /16 0 1 TC*18... 1.2 This toolholder can be used with threading and grooving inserts. 7 Use right-hand toolholders (R) with right-hand inserts (R); and left-hand toolholders (L) with left-hand inserts (L) Endmill (1) Compatible to the direct internal coolant supply system without the use of external coolant hose. *Torque: Recommended clamping torque (N∙m) SPARE PARTS Designation Clamping screw Wrench STCL**18-CHP CSTC-4L100DR T-1008/5 Groove width : 0.33 ~ 3 mm STCR**18-CHP CSTC-4L100DL T-1008 /5 Pitch : 0.8 ~ 3 mm 8 Drilling Tool Technical Reference Reference pages: Inserts → 5-4, Standard cutting conditions → 5-25 9 Parts for coolant hose → 3-61 5-15