ISO Insert GradeInsertExt. ToolholderInt. ToolholderThreadingGroovingMiniature toolMilling cutterEndmillDrilling toolTooling SystemUser's GuideIndex A Positive type B Min. bore diameter DMIN (mm) C Style Designation & Application Material Page01020304050 SSKPR Through boring SteelInsert : SP ø20 ø31 D038 D SDUCR/L Steel ø13 ø32 30˚ Boring & internal profilingInsert : DC Carbide ø13 ø27 D050 SDUPR/L Steel15.5˚Boring & internal profilingø15ø22 D051 E Insert : DPMT Carbide ø15 ø22 Steel ø16 ø32 50˚ SVUCR/LBoring & internal profiling CarbideInsert : VCReinforced ø18 ø32ø32 D068D069 F Steel ø20 ø32 50˚ SVUBR/LBoring & internal profiling CarbideInsert : VBReinforced ø24.5 ø34ø25 D064D065 G SteelSDQCR/L15.5˚Boring & internal profilingCarbideInsert : DCReinforcedø13ø30ø13ø25ø20ø32D077D078H SDQPR/L Steel ø15 ø22 30˚ Boring & internal profiling D079 Insert : DPMT CarbideSteelSVQCR/L25.5˚Boring & internal profilingCarbideø15ø22ø13.5ø21.5 ID082ø13.5ø21.5D083 Insert : VC Reinforced ø32 SteelSVQBR/L25.5˚Boring & internal profilingCarbideInsert : VBReinforcedø17ø30.5D080Jø17ø30.5D081ø25 30˚ SDZCR/LBack boring SteelInsert : DCCarbideø14 ø25ø18ø22 D086 K SVZCR/L 50˚ Back boring Steel ø16Insert : VCSVZBR/L D090 L 50˚ Back boring Steel ø20 ø40 D089 Insert : VB M Tungaloy D007