SEC-External Holders PCBN Type / PCFN Type SEC-70 Type Holder - General Turning and Profiling 75˚ Lever Lock PCBN Fig 1 WF B External Turning External Holders 10 ˚ –6˚ 75 0 LF ˚ –5˚ LH HF C H Figure shows right-hand (R) tool. Holder Parts  Dimensions (mm) Cutting Lever Shim Stock Overall Cutting Applicable Insert Bolt Shim Wrench Height Width Edge Head Pin Pin Length Edge Neg. Previous Cat. Height Cat. No. Fig No. Ref. R L Cat. No. H B LF WF HF LH Page (For Hex Socket) PCBN R/L2020K12 PCBN R/L2020-43 ● ● 20 20 125 17 20 27 1 PCBN R/L2520M12 PCBN R/L2520-43 25 20 150 17 25 27 B22 1 Pos. CN□□1204 LCL4 LCS4 LSC42 LSP4 LH030 PCBN R/L2525M12 PCBN R/L2525-43 ● ● 25 25 150 22 25 27 on 1 PCBN R/L3225P12 PCBN R/L3225-43 32 25 170 22 32 27 1 PCBN R/L2525M16 PCBN R/L2525-54 25 25 150 22 25 33 1 B26 PCBN R/L3225P16 PCBN R/L3225-54 32 25 170 22 32 33 CN□□1606 on 1 LCL5 LCS5 LSC53 LSP5 LH030 PCBN R/L3232P16 PCBN R/L3232-54 32 32 170 27 32 33 1 PCBN R/L3232P19 PCBN R/L3232-64 32 32 170 27 32 38 B28 1 C CN□□1906 LCL6 LCS6 LSC63 LSP6 LH040 PCBN R/L4040R19 PCBN R/L4040-64 40 40 200 35 40 38 on 1 91° SEC-70 Type Holder - General Turning, Facing and Profiling Lever Lock D PCFN Fig 1 ˚ WF B Facing 91 R 80 –5˚ ˚ LF –5˚ LH S HF H Figure shows right-hand (R) tool. Holder Parts  Dimensions (mm) Cutting Lever Shim Stock Overall Cutting Applicable Insert Bolt Shim Wrench T Height Width Edge Head Pin Pin Length Edge Previous Cat. Height Cat. No. Fig No. Ref. R L Cat. No. H B LF WF HF LH Page (For Hex Socket) V PCFN R/L2020K12 PCFN R/L2020-43 ● ● 20 20 125 25 20 28 1 PCFN R/L2520M12 PCFN R/L2520-43 25 20 150 25 25 28 B22 1 CN□□1204 on LCL4 LCS4 LSC42 LSP4 LH030 PCFN R/L2525M12 PCFN R/L2525-43 ● ● 25 25 150 32 25 28 1 PCFN R/L3225P12 PCFN R/L3225-43 32 25 170 32 32 28 1 When using handed breaker inserts for facing, the holder and insert are opposite handed. W Applicable Inserts DCLN Type / PCLN Type / PCBN Type / PCFN Type Special Name of ● Refer as well to the Insert Selection Guide (page A10 on). Chipbreaker / GU Legend 1st Recommended Insert CBN / PCD Photo ● Some combinations need to be made to order or cannot be manufactured. Grade AC8025P Cutting Range P (Steel) M (Stainless Steel) K (Cast Iron) S (Exotic Alloy) N (Non-ferrous) H (Hardened Steel) Process Finishing Medium Cutting Roughing Finishing Medium Cutting Roughing High-speed Finishing Finishing to Medium Cutting Medium to Roughing Finishing Medium Cutting Roughing High-precision/Finishing Finishing to Medium Cutting Coated Uncoated Continuous FE GU MU EF EG EM SUMIBORON UZ GZ EF EG EM SUMIDIA AX SUMIBORON SUMIBORON Cutting T1500Z AC8015P AC8025P AC6020M AC6020M AC6030M BN7000/BNC500 AC4010K AC4010K AC5015S AC5015S AC5015S DA1000 H1 BNC2010 BN1000 General SU GU MU EF EG EM SUMIBORON GZ GZ EF EG EM SUMIDIA AX SUMIBORON SUMIBORON Cutting AC8015P AC8025P AC8025P AC6030M AC6030M AC6040M BN7000/BNC500 AC4015K AC4015K AC5015S AC5015S AC5025S DA1000 H1 BNC2020 BN2000 Interrupted SX MX UX EF EG EM SUMIBORON GZ No Chipbreaker EF EG EM SUMIDIA SUMIBORON SUMIBORON Cutting Q AC8025P AC8035P AC8035P AC6030M AC6040M AC6040M BN7000/BNC500 AC420K AC420K AC5025S AC5025S AC5025S DA1000 BNC300 BN350 Recommended Cutting Conditions A10 on A14 on A16 on A18 on A22 on A20 on BNC500 is for ductile cast iron. C9