
SEC-Boring Bar S-DSKN / S-PSKN Type Medium Diameter General 75° Steel Double Clamp S-DSKN Fig 1 DMIN Min. Bore Dia. DCON Fig 2 DMIN Min. Bore Dia. DCON Through Boring 75° 75° WF WF Boring H Bars LF LF H GAMF GAMF -6° -6° E (LHD) Figure shows right-hand (R) tool. Holder Parts Dimensions (mm) Applicable Shim Upper Surface Lower Surface Stock Min. Overall Cutting Rake Clamp Set Shim Insert Screw Wrench Wrench Material Bore Diameter Height Edge Head Holder Cat. No. Length Angle Fig Dia. Distance C Ref. Page R L Cat. No. Nm DMIN DCON H LF WF LHD GAMF (For Hex Socket) (For Hex Socket) S25R-DSKN R/L1204-32 ● ● 32 25 23 200 17.0 (26) -13° 1 S32S-DSKN R/L1204-40 ● ● 40 32 30 250 22.0 (21) -10° B41 1 Steel SN□□1204 SCP-2 5.0 SNS1203B BFTX0307N LH040 LH025 S40T-DSKN R/L1204-50 ● ● 50 40 37 300 27.0 (21) -10° on 1 D S50U-DSKN R/L1204-63 ● ● 63 50 47 350 31.5 Q -10° 2 Right-handed (R) tool holders are compatible with left-handed (L) or neutral (N) inserts. Clamp Set Parts E70 Left-handed (L) tool holders are compatible with right-handed (R) or neutral (N) inserts. ( ) is a reference value. R For Medium Diameter General 75° Steel Lever Lock S-PSKN Fig 1 DMIN Min. Bore Dia. DCON Fig 2 S Through Boring 75° 75° WF WF LF H T -10° -6° (LHD) Figure shows right-hand (R) tool. V Holder Parts Dimensions (mm) Applicable Lever Shim Stock Min. Overall Cutting Bolt Shim Wrench Insert Pin Pin Material Bore Diameter Height Edge Head Holder Previous Length W Cat. No. Dia. Distance Fig Ref. Page Cat. No. R L Cat. No. DMIN DCON H LF WF LHD Very Small Diameter Turning Small Diameter Turning (For Hex Socket) S32S-PSKN R/L1204-40 Q ● ● 40 32 30 250 22.0 (21) 1 S32S-PSKN R/L1204-44 S32S-PSKN R/L 12 ▲ ▲ 44 32 30 250 22.0 (21) 1 LSS42B S40T-PSKN R/L1204-50 Q ● ● 50 40 37 300 27.0 (21) SN□□1204 B41 on 1 LCL4 LCS4 LSP4 LH030 Steel S40T-PSKN R/L1204-54 S40T-PSKN R/L 12 ▲ ▲ 54 40 37 300 27.0 (21) 1 LSS42 S50U-PSKN R/L1204-63 Q ● ● 63 50 47 350 31.5 Q 2 LSS42B S50U-PSKN R/L1906-70 S50U-PSKN R/L 19 ▲ ▲ 70 50 47 350 35.0 (31) SN□□1906 B47 on 1 LCL6 LCS6 LSS63 LSP6 LH040 Right-handed (R) tool holders are compatible with left-handed (L) or neutral (N) inserts. Left-handed (L) tool holders are compatible with right-handed (R) or neutral (N) inserts. ( ) is a reference value. Applicable Inserts S-DSKN / S-PSKN / S-ESKN / S-PSYN / S-ESYN Type Name of Chipbreaker/ GU Legend ● Refer as well to the Insert Selection Guide (page A10 on). 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 FE GU MU EF EG EM SUMIBORON UZ GZ EF EG EM SUMIBORON SUMIBORON SUMIDIA Binderless Continuous Cutting T1500Z AC8015P AC8025P AC6020M AC6020M AC6030M BN7000/BNC500 AC4010K AC4010K AC5015S AC5015S AC5015S BNC2010 BN1000 NPD10 SU GU MU EF EG EM SUMIBORON GZ GZ EF EG EM SUMIBORON SUMIBORON SUMIDIA General Cutting AC8015P AC8025P AC8025P AC6030M AC6030M AC6040M BN7000/BNC500 AC4015K AC4015K AC5015S AC5015S AC5025S BNC2020 BN2000 DA90 SX UX MX EF EG EM SUMIBORON GZ No Chipbreaker EF EG EM SUMIBORON SUMIBORON Interrupted — Cutting 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) ▲ mark: To be replaced by a new product, made to order, or discontinued (please confirm stock availability) E45