SUMIBORON Indexable Inserts Legend: Continuous Cut : 1st Choice Medium Cut : 1st Choice Interrupted Cut : 1st Choice : 2nd Choice : 2nd Choice : 2nd Choice CNG¢1204˜˜ Coated Applicable holder ref. page, (Example) RecommendedApplication K cast iron SUMIBORON S exotic alloy Applicable External Holders C7, 8 H hardened steel I.C.: ø12.7 Thickness: 4.76 Hole: ø5.16 Applicable Internal Holders E23 to E25 sintered component Coated CBN Pcs./Pack No. of Cutting Edges Dimensions BNC2010 BNC2020 (mm) BNC300 BNC100 BNC160 BNC200 BNC500 ■ Multi-cornered,One-use Type/Negative (With Hole) Radius Cutting Edge Appearance Cutting Edge Cat. No. Old Cat. No. Nose Length Specification L 2NC-CNGA 120404 0.4 2.5 D D     D   120408 0.8 2.4 D D     D   Negative Inserts Standard 120412 Q 1.2 2.3 D D       120416* 1 2 D D D D D  1.6 3.3 120420* 2.0 3.2 D D D   D D   120424* 2.4 3.1 D D D   D D   4NC-CNGA 120402 0.2 2.5 D D       C 120404 0.4 2.5 D D DDDDD 120408 0.8 2.4 D D D D D D D Standard 120412 Q 1 4 1.2 2.3 D D D D D D D 120416* 1.6 3.3 D D D   D D   D 120420* 2.0 3.2 D D D   D D   120424* 2.4 3.1 D D D   D D   4NC-CNGA 120404WG 0.4 2.4 D D Q Q D D Q R S01215 120408WG Q 1 4 0.8 2.4 D D Q Q D D Q Wiper Insert 120412WG 1.2 2.3 D D Q Q D D Q 4NC-CNGA 120404WH 0.4 2.4 D D Q Q D D Q S S01215 120408WH Q 1 4 0.8 2.3 D D Q Q D D Q Wiper Insert 120412WH 1.2 2.2 D D Q Q D D Q BNC100 → S01715 4NC-CNGA 120404W 0.4 2.5    D D D   BNC160 → S01215 120408W Q 1 4 0.8 2.4    D D D D T BNC200 → S01215 120412W         Wiper Insert BNC500 → S01215 1.2 2.3 4NC-CNGG 120404N-FV 0.4 2.5 D D Q Q D D Q Honing 120408N-FV Q 1 4 0.8 2.4 D D Q Q D D Q V Break Master 120412N-FV 1.2 2.3 D D Q Q D D Q 4NC-CNGG 120404N-LV 0.4 2.5 D D Q Q D D Q S00535 120408N-LV Q 1 4 0.8 2.4 D D Q Q D D Q W Break Master 120412N-LV 1.2 2.3 D D Q Q D D Q 4NC-CNGG 120404N-SV 0.4 2.5     Q Q     Q S01235 120408N-SV Q 1 4 0.8 2.4   D Q Q D D Q Break Master 120412N-SV 1.2 2.3  D Q Q D D Q *For use with SUMIBORON holders for high-efficiency machining shown on page L101. SUMIBORON SUMIBORON Application Range Map Ⓒ Gray Cast Iron Ⓓ Ductile Cast Iron Ⓔ General Sintered Alloy Ⓕ High Density Sintered Alloy Cutting Speed (m/min) 2,000 Cutting Speed (m/min) 500 Cutting Speed (m/min) 300 Cutting Speed (m/min) 300 1,500 400 BN7000 BNC500 200 200 1,000 300 BN7500 BNS800 100 BN7000 100 BN7500 500 BN500 200 BN7000 BN7000 0 1.0 2.0 3.0 4.0 0 0.1 0.3 0.5 Depth of 0 0.1 0.2 0.3 0.4 0.5 Depth of 0 0.1 0.2 0.3 0.4 0.5 Cut (mm) Cut (mm) Depth of Cut (mm) Depth of Cut (mm) Feedrate 0.05 0.1 0.15 0.2 0.25 0.3 Feedrate 0.05 0.1 0.15 0.2 0.25 0.3 (mm/rev) (mm/rev) L31