Boring Bar Selection Guide Colored sections: manufacturable sizes (without oil hole) ● : In stock H : With oil hole in stock Application Shank type boring Applicable Minimum bore diameter (mm) Tool type depth (L/D) inserts Tooling Note: If different from the machineable diameter in the heading, it is indicated in the table Steel Carbide Vibration control type/shape 1 1.5 2 3 4 5 6 7 8 10 12 13 14 16 18 20 22 25 28 34 44 54 70 C-SCLC –8 D D D D D D D D D D D → E13 E-SCLC –8 With 80 diamond type H H H H → E14 oil hole 7 positive (with hole) S-SCLP –3 D D D D D D D D [BBPC] → E19 A-SCLP –3 H H H H H H → E19 27 B-SCLP/ 80 diamond type D-SCLP –6 11 positive D D D [XBPC/XBPC-H] → E20 (with hole) H H H C-SCLP –8 D D D D D Bottom Facing [WBPC] → E20 E S-DCLN Expanded D D D –3 D 40 50 63 → E23 DCLN Type 32 D D D Boring Bars D-DCLN –6 H H H → E23 32 40 50 S-PCLN Expanded D D D –3 PCLN Type / ECLN Type D 40 50 63 → E24 32 D D D B-PCLN –6 80 diamond type D D → E24 negative (with hole) 40 50 S-ECLN –3 D D D D [BCLN] → E25 26 D-DWLN –6 H H H → E26 32 40 50 S-DWLN Expanded –3 D D D D → E25 32 40 50 63 S-PWLN Expanded Trigon type –3 negative (with hole) D D → E26 40 50 6 8 10 12 13 14 16 18 20 22 25 28 32 34 35 40 44 50 54 63 70 S-SDUC Expanded D S-SDQC Expanded –3 D D D 23 D → E27, E29 SDUC Type D A-SDUC H A-SDQC –3 H H H 23 H → E27, E29 H B-SDUC SDQC Type B-SDQC –6 D D D D D → E28, E30 C-SDUC –8 55 diamond D D D D → E28 7 positive (with hole) S-SDZC Expanded D –3 D D D 23 D → E30 D Profiling S-SVJB Expanded –3 D D D D → E38 30 B-SVJB –6 D D → E38 30 S-SVJC –3 D D → E38 S-SVQC Expanded 35 diamond type D D D D D D D S-SVUC Expanded –3 → E40, E42 5 positive (with hole) A-SVUC 7 positive (with hole) –3 SVU □ Type / SVQ □ Type H H H H → E42 A-SVQC –3 H H H H → E40 S-SVQB Expanded S-SVUB Expanded –3 D D D D D D → E39, E41 The type codes in [ ] are old type codes. 6 8 10 12 13 14 16 18 20 22 25 28 32 34 35 40 44 50 54 63 70 E6