Boring Bars for Ceramic Tools [EN, SN Insert] Top Clamp S-CELN (Boring / Internal Facing) Max. Overhang Length L/D=~3 φA φD Applicable Inserts Cast Iron / Hard Materials 97.5゚ F 97.5° B99 Ceramic θ L2 H L1 • Right-hand shown ENGN1307.. Recommended Cutting Conditions F93~F94 Toolholder Dimensions Std. Min. Dimension (mm) Std. Corner-R(rε) Spare Parts Bore Dia. Chipbreaker Clamp Set Wrench Shim Shim Screw F Description θ R L φA φD H L1 L2 F S40T-CELNR13-50 50 40 37 300 32 27 12° 0.8 CB-16 CE-010 LW-4 SP-341P M3X8 S-CSKN (Boring) Max. Overhang Length L/D=~3 Boring φA φD Applicable Inserts Cast Iron / Hard Materials Cast Iron Hard Materials / Cast Iron 75° F 75° B101 B31 C19 Ceramic Coated Carbide CBN(KBN900) θ L2 H L1 • Right-hand shown SNGN1207..(1204..) (SNMN1204..) (SNMN1204..) SNMN1207.. Recommended Cutting Conditions F93~F94 Toolholder Dimensions Std. Min. Dimension (mm) Std. Corner-R(rε) Spare Parts Bore Dia. Chipbreaker Clamp Set Wrench Shim Shim Screw Description θ R L φA φD H L1 L2 F S40T-CSKN&12-50 50 40 37 300 26 27 10.5° 0.8 CB-13/12 CE-320 LW-4 SP-141P M3X8 (SP-143P) (M3X12) · Chipbreaker: CB-13 for Right-hand Toolholder, CB-12 for Left-hand Toolholder. · Shim & Shim Screw : When using SN1204 Insert, purchase spare parts in ( ) separately. ●: Std. Item F79