SEC-External Holders DSBN Type / DSDN Type SEC-D Type Holder - General Turning and Profiling 75˚ Double Clamp DSBN Fig 1 WF B External Turning 75° External –6° Holders LF LH –5° HF H Figure shows right-hand (R) tool. Holder Parts  Dimensions (mm) C Cutting Clamp Shim Shim Upper Surface Lower Surface Stock Overall Cutting Applicable Insert Shim Height Width Edge Head Set Screw Wrench Wrench Wrench Length Edge Height TRX Neg. Cat. No. Fig Ref. R L Cat. No. Nm H B LF WF HF LH Page TRD (For Torx Holes) (For Hex Socket) (For Hex Socket) DSBN R/L2020K12 ● ● 20 20 125 17 20 36 B41 1 SN□□1204 SCP-2 5.0 SNS1204 BFTX0409N TRX15(*) LH040 LH025 DSBN R/L2525M12 ● ● 25 25 150 22 25 36 on 1 DSBN R/L2525M15 ● ● 25 25 150 22 25 36 B45 1 Pos. SN□□1506 SCP-3 5.0 SNS1506 BFTX0509N TRX20(*) LH040 LH025 DSBN R/L3232P15 ● ● 32 32 170 27 32 36 on 1 DSBN R/L3232P19 ● ● 32 32 170 27 32 45 B47 1 SN□□1906 SCP-5 5.0 SNS1906 BFTX0511N TRX20(*) LH040 LH025 DSBN R/L4040S19 ● ● 40 40 250 35 40 45 on 1 DSBN R/L4040S2507 ● ● 40 40 250 35 40 58 SN□□2507 B49 1 SCP-6 6.0 SNS2507 BFTX0615N TRD25(*) LH060 Q DSBN R/L4040S2509 ● ● 40 40 250 35 40 58 SN□□2509 B50 1 SCP-6 6.0 SNS2509 BFTX0615N TRD25(*) LH060 Q C *Wrench for shim is sold separately from the main body. Clamp Set Parts C44 SEC-D Type Holder - General Turning and Chamfering 45˚ Double Clamp D DSDN Fig 1 WF External / Chamfering R B 45° LF –6° LH –6° S HF H Holder Parts  Dimensions (mm) Cutting Clamp Shim Shim Upper Surface Lower Surface T Overall Cutting Applicable Insert Shim Height Width Edge Head Set Screw Wrench Wrench Wrench Length Edge Stock Height Cat. No. Fig Ref. Cat. No. Nm H B LF WF HF LH Page (For Torx Holes) (For Hex Socket) (For Hex Socket) V DSDN N2020K12 ● 20 20 125 10.0 20 36 B41 1 SN□□1204 on SCP-2 5.0 SNS1204 BFTX0409N TRX15(*) LH040 LH025 DSDN N2525M12 ● 25 25 150 12.5 25 36 1 *Wrench for shim is sold separately from the main body. Clamp Set Parts C44 W Applicable Inserts DSBN Type/DSDN Type/DSSN Type/PSBN Type/PSDN Type/PSSN Type/PSKN Type/ESBN Type/ESDN Type/ESSN Type/ESKN 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) H (Hardened Steel) Hard Brittle Material Process Finishing Medium Cutting Roughing Finishing Medium Cutting Roughing High-speed Finishing Finishing to Medium Cutting Medium to Roughing Finishing Medium Cutting Roughing Coated Uncoated Finishing Continuous FE GU MU EF EG EM SUMIBORON UZ GZ EF EG EM SUMIBORON SUMIBORON SUMIDIA Binderless Cutting T1500Z AC8015P AC8025P AC6020M AC6020M AC6030M BN7000/BNC500 AC4010K AC4010K AC5015S AC5015S AC5015S BNC2010 BN1000 NPD10 General SU GU MU EF EG EM SUMIBORON GZ GZ EF EG EM SUMIBORON SUMIBORON SUMIDIA Cutting AC8015P AC8025P AC8025P AC6030M AC6030M AC6040M BN7000/BNC500 AC4015K AC4015K AC5015S AC5015S AC5025S BNC2020 BN2000 DA90 Interrupted SX UX MX EF EG EM SUMIBORON GZ No Chipbreaker EF EG EM SUMIBORON SUMIBORON Cutting Q AC8025P AC8035P AC8035P AC6030M AC6040M AC6040M BN7000/BNC500 AC420K AC420K AC5025S AC5025S AC5025S BNC2020 BN350 Recommended Cutting Conditions A10 on A14 on A16 on A18 on A20 on M2 on BNC500 is for ductile cast iron. N m Recommended Tightening Torque (N·m) C17