Recommended Application WX120 NB90S NB100C Inscribed Circle Thickness Nose Radius Hole Dia. CeramicsSolid CBNPos.Neg.Insert IGETALLOY Ceramic Inserts Indexable Insert Pos. Without Hole (Legend) Continuous Cutting : 1st Recommended: 2nd Recommended P SteelM Stainless Steel General Cutting : 1st Recommended: 2nd Recommended K Cast Iron Interrupted Cutting : 1st Recommended: 2nd Recommended N Non-Ferrous MetalSExotic Alloy H Hardened Steel ○ Ceramics Dimensions (mm) Round Type Shape Cat. No.RBGN 120700 Q 12.70 7.94 Q B RBGN 150700 Q 15.875 7.94 Q Q RBGN 250900 Q 25.40 9.52 Q RBG 12S Q 12.00 11.0 Q RBG 16S D Q 16.00 13.0 Q RBG 20S D Q 20.00 15.0 Q Q RBG 26S Q 26.00 16.0 Q RBG 32S Q 32.00 21.0 Q RCGX 090700 D Q 9.525 7.94 Q RCGX 120700 QQ 12.70 7.94Q Square Type SPGN 090308 Q 9.525 3.18 0.8 C SPGN 120308 QDQ 12.70 3.180.8 Triangular Type D TPGN 110304 D D 0.4 TPGN 110308 6.35 3.18D 0.8 TPGN 160304 QDD0.4 TPGN 160308 9.525 3.18DD 0.8 R WX120 is only sold in Japan. S T V W B129