
Inte r nal Toolholde r - Q uick Guide 1 Grade Positive type 2 Insert ISO Insert Min. bore diameter DMIN (mm) Style Designation & Application Material Page 0 10 20 30 SEXPR/L Steel ø4.5 ø7 Boring & internal facing 4-13 Ext. Toolholder Insert : EP** 3 Carbide ø4.5 ø7 SWUBR/L Steel ø6 ø8 Boring 4-15 Insert : WB** Carbide ø6 ø8 SCLCR/L Steel ø5 ø20 Boring & internal facing 4-16 Insert : CC** Carbide ø5 ø16 Int. Toolholder 4 SCLPR/L Steel ø10 ø20 Boring & internal facing 4-17 Insert : CP** Carbide ø10 ø16 SWLXR/L Steel ø12 ø18 Boring & internal facing 4-18 Insert : WXGU Carbide ø12 ø14 5 STUPR/L Threading Steel ø8 ø20 Boring 4-19 Insert : TP** Carbide ø8 ø16 STFPR/L Steel ø10 ø18 Internal hole boring 4-20 Insert : TP** Carbide ø10 ø14 STFCR/L 6 Steel ø12 ø18 Internal hole boring Grooving 4-21 Insert : TC** Carbide ø12 ø14 SDXXR/L 15.5˚ Steel ø13 ø20 Boring & internal profiling 4-25 Insert : DXGU Carbide ø13 ø16 SDUCR/L Steel ø13 ø20 7 30˚ Boring & internal profiling 4-22 Carbide Endmill Insert : DC** ø13 ø16 SDQCR/L Steel ø13 ø20 15.5˚ Boring & internal profiling 4-22 Carbide ø13 ø16 Insert : DC** SDUPR/L Special ø15 ø22 Boring & internal profiling alloy steel 4-24 8 15.5˚ Drilling Tool Insert : DPMT** Carbide ø15 ø18 SDQPR/L Special ø15 ø22 15.5˚ Boring & internal profiling alloy steel 4-24 Insert : DPMT** Carbide ø15 ø18 SVUBR/L 50˚ Technical Reference Boring & internal profiling Steel ø20 4-26 9 Insert : VB** SVQBR/L Steel ø17 ø21.5 25.5˚ Boring & internal profiling 4-26 Insert : VB** Carbide ø17 4-3