140° DC h7 Stock DCON h6 140° DC h7 DCSFMS DCON h6 OthersBrazedReamersIndexableIndexableInsert TypeHead TypeSolidDrilling SEC-MultiDrills MTL Carbon Steel/Alloy Steelup to 0.28%Carbon Steel/Alloy Steelfrom 0.29%TemperedSteelHardenedSteelup to 45HRCStainlessSteelCast IronDuctileCast Iron SMD Type (Internal Coolant Supply) MEL Carbon Steel/Alloy Steelup to 0.28%Carbon Steel/Alloy Steelfrom 0.29%HardenedSteelup to 45HRCStainlessSteelTi AlloyHeat-resistantSteelCast IronDuctileCast IronAluminumAlloy Indexable head Indexable head Coolant Hole Indexable The 12D shank has no side lock flat. Coat Type Type *Refer to N38 for the tolerance of h6 and h7 Steel Mounted Figure Fig 1 Fig 2 LU LS LU LS 3D/5D/8D OAL 1.5D/12D OAL Holder ø21.5 to 35.0mm Dimensions with MTL Type/MEL Type set Parts Dimensions (mm)Cap ScrewWrenchJ Dia.DC HoleDepth Cat. No.(L/D) EffectiveLengthOverallLengthShankFlangeDia.LUOALLSDCSFMSShankDia.DCONIndexableHead Fig Nm 1.5 SMDH 220S ● 51 121 30 2 3 SMDH 220M ● 84 165 1 2.79 21.5 < D ≤ 22.8 5 SMDH 220L ● 129 205 56 Q 25 MTL/MEL 1 BXD03512IP to TRDR15IP 8 SMDH 220D ● 196 275 1 3.72 12 SMDH 220-12D ● 268 347 30 2 1.5 SMDH 230S ● 51 122 30 2 3 SMDH 230M ● 87 165 1 2.79 22.8 < D ≤ 23.8 5 SMDH 230L ● 134 215 56 Q 25 MTL/MEL 1 BXD03512IP to TRDR15IP 8 SMDH 230D ● 205 285 1 3.72 12 SMDH 230-12D ● 280 359 30 2 1.5 SMDH 240S ● 54 129 37 2 3 SMDH 240M ● 91 175 1 2.79 23.8 < D ≤ 24.8 5 SMDH 240L ● 140 225 60 Q 32 MTL/MEL 1 BXD03512IP to TRDR15IP 8 SMDH 240D ● 213 300 1 3.72 12 SMDH 240-12D ● 292 376 37 2 1.5 SMDH 250S ● 54 129 37 2 3 SMDH 250M ● 93 175 1 4.14 24.8 < D ≤ 25.8 5 SMDH 250L8SMDH 250D ● 145 230 60●222305 Q 32 MTL/MEL 1 BXD04014IP to TRDR20IP15.52 12 SMDH 250-12D ● 305 388 2 1.5 SMDH 260S ● 57 132 37 2 25.8 < D ≤ 26.8 3 SMDH 260M5SMDH 260L ● 97●151 180235 60 Q8SMDH 260D●23031532 MTL/MEL 11 BXD04014IP 4.14to TRDR20IP5.521 1.5 SMDH 270S ● 58 133 37 2 26.8 < D ≤ 27.8 3 SMDH 270M5SMDH 270L ● 99●156 180240 60 Q8SMDH 270D●23932532 MTL/MEL 11 BXD04014IP 4.14to TRDR20IP5.521 1.5 SMDH 280S ● 60 135 37 2 27.8 < D ≤ 28.8 3 SMDH 280M5SMDH 280L ● 102●162 185245 60 Q8SMDH 280D●24733032 MTL/MEL 11 BXD04515IP 4.98to TRDR25IP6.641 1.5 SMDH 290S ● 61 136 37 2 28.8 < D ≤ 29.8 3 SMDH 290M5SMDH 290L ● 105●167 190250 60 Q8SMDH 290D●25634032 MTL/MEL 11 BXD04515IP 4.98to TRDR25IP6.641 1.5 SMDH 300S ● 64 139 37 2 29.8 < D ≤ 30.8 3 SMDH 300M5SMDH 300L ● 110●173 191261 60 Q8SMDH 300D●26535132 MTL/MEL 11 BXD04515IP 4.98to TRDR25IP6.641 3 SMDH 320M ● 116 201 1 4.98 30.8 < D ≤ 32.0 5 SMDH 320L ● 181 266 60 Q 32 MTL 1 BXD04515IP to TRDR25IP 8 SMDH 320D ● 276 361 1 6.64 3 SMDH 335M ● 121 206 1 4.98 32.0 < D ≤ 33.5 5 SMDH 335L ● 191 276 60 Q 32 MTL 1 BXD04515IP to TRDR25IP 8 SMDH 335D ● 291 376 1 6.64 3 SMDH 350M ● 126 221 1 33.5 < D ≤ 35.0 5 SMDH 350L ● 201 296 70 Q 40 MTL 1 BX0515 7.2 HD040 8 SMDH 350D ● 306 401 1 LU for 12D holder is the value with typical diameter. Recommended Cutting Conditions J95 MTL Type Head J97 MEL Type Head J99 N m Recommended Tightening Torque (N·m) J101