SEC-Threading Tools STI Type Internal Grooving ● Metricthread ● Unified threads STI Internal threading Internal Min. machining diameter DMIN DCON WF E1 H ■ Parts 15° LF ■ Holders Dimensions (mm) Cutting Cutting Min. Diameter Height Length edge edge machining Cat. No. Stock distance distance diameter Screw Nm Wrench DCON H LF WF E1 DMIN STI R316 D 16 15 150 11 3.5 20 BFTX03508 2.0 TRX10 STI R320 D 20 18 180 14 5.0 25 ■ Inserts F Enlarged view of PDX Threading cutting edge RE PDY Tools ø9.525±0.05 3.65 Grooving ø3.81 Cut-Off Grade in stock Threading Pitch Nose Included X Y Cat. No. Reference Cat. No. Coated carbide Cermet radius angle direction direction mm Threads/ inch AC225 T1500A RE PNA PDX PDY TMI 100R 16IR 100ISO-TI 1.00 Q F D 0.04 60 0.8 1.2 TMI 125R 16IR 125ISO-TI 1.25 Q F D 0.05 60 0.8 1.2 TMI 150R 16IR 150ISO-TI 1.50 Q F D 0.07 60 1.0 1.2 TMI 175R 16IR 175ISO-TI 1.75 Q F D 0.09 60 1.2 1.2 TMI 200R 16IR 200ISO-TI 2.00 Q F D 0.10 60 1.4 1.2 TMI 250R 16IR 250ISO-TI 2.50 Q F D 0.14 60 1.4 1.2 TMI 300R 16IR 300ISO-TI 3.00 Q F D 0.18 60 1.8 1.2 TMI 1020R 16IR 102060-TI 1.00 to 2.00 24 to 12 F D 0.04 60 1.0 1.2 TMI 1530R 16IR 153060-TI 1.50 to 3.00 16 to 8 F D 0.07 60 1.5 1.2 Apply this insert to the STI type. Warning: The red values have changed since those listed in the 2015-2016 Comprehensive Catalog. N m Recommended tightning torque (N・m) F mark: To be replaced by a new item (Please confirm stock availability) F81