
SEC-Boring Bar S-DTFN / D-DTFN Type Medium Diameter General-purpose 91° Steel Double Clamp S-DTFN Fig 1 DMIN Min. Bore Dia. 91° DCON Fig 2 DMIN Min. Bore Dia. 91° DCON Stop Boring WF WF H LF H LF Boring Bars -10° -10° -6° -6° LHD Figure shows right-hand (R) tool. Holder Parts Dimensions (mm) E Shim Upper Surface Lower Surface Stock Min. Overall Cutting Applicable Insert Clamp Set Shim Screw Wrench Wrench Material Bore Diameter Height Edge Head Holder Cat. No. Length Fig Dia. Distance Ref. Page C R L Cat. No. Nm DMIN DCON H LF WF LHD (For Hex Socket) (For Hex Socket) S32S-DTFN R/L1604-40 ● ● 40 32 30 250 22.0 26 1 Steel S40T-DTFN R/L1604-50 ● ● 50 40 37 300 27.0 26 TN□□1604 B56 on 1 SCP-1 5.0 TNS1604B BFTX0307N LH040 LH025 S50U-DTFN R/L1604-63 ● ● 63 50 47 350 31.5 Q 2 D 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. R Steel with 91° Anti-Vibration Medium Diameter General-purpose Mechanism Coolant Hole Double Clamp D-DTFN Stop Boring Fig 1 DMIN Min. Bore Dia. With oil hole 91° DCON S WF H LF GAMF -6° T LHD Figure shows right-hand (R) tool. V Holder Parts Dimensions (mm) Shim Upper Surface Lower Surface Stock Min. Overall Cutting Rake Applicable Insert Clamp Set Shim Bore Diameter Height Edge Head Screw Wrench Wrench Length Angle Material Holder Dia. Distance W Ref. Page Cat. No. Fig R L Cat. No. Nm DMIN DCON H LF WF LHD GAMF Very Small Diameter Turning Small Diameter Turning (For Hex Socket) (For Hex Socket) Steel with Anti- D25T-DTFN R/L1604-32 ● ● 32 25 23 300 17 21 -12° 1 TNS1603B Vibration Mechanism D32T-DTFN R/L1604-40 ● ● 40 32 30 300 22 26 -10° TN□□1604 B56 on 1 SCP-1 5.0 BFTX0307N LH040 LH025 TNS1604B with Oil Hole D40U-DTFN R/L1604-50 ● ● 50 40 37 350 27 26 -10° 1 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. Applicable Inserts S-DTFN / D-DTFN / S-PTFN / B-PTFN / S-ETFN 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) 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 — Coated Uncoated FE GU MU EF EG EM SUMIBORON UZ GZ EF EG EM SUMIDIA SUMIBORON SUMIBORON Continuous Cutting T1500Z AC8015P AC8025P AC6020M AC6020M AC6030M BN7000/BNC500 AC4010K AC4010K AC5015S AC5015S AC5015S DA1000 BNC2010 BN1000 SU GU MU EF EG EM SUMIBORON GZ GZ EF EG EM SUMIDIA SUMIBORON SUMIBORON General Cutting AC8015P AC8025P AC8025P AC6030M AC6030M AC6040M BN7000/BNC500 AC4015K AC4015K AC5015S AC5015S AC5025S DA1000 BNC2020 BN2000 SX UX MX EF EG EM SUMIBORON GZ GZ EF EG EM SUMIDIA SUMIBORON SUMIBORON Interrupted Cutting 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. N m Recommended Tightening Torque (N·m) E55