TurningMillingDrillingTechnicalInformationIndex Parting & grooving System code – tool holders – QC series A External tool holders – QC series GQC R 20 20 K 22 – 15 1 2 3 4 5 6 7 Type Height [mm] Width [mm] Length [mm] Code Description Code Description Code Description Code Description Series R Right 16 16 16 16 K 125 L Left 20 20 20 20 M 150 B 25 25 25 25 1 2 3 4 5 Cutting edge length [mm] Cutting width range [mm] Code I.C Code Insert size 11 6,35 15 0,5≤S<1,8 (QC16***) 1,0≤S<2,3 (QC22***) 16 9,252 25 1,8≤S<3,0 (QC16***) 2,3≤S<3,3 (QC22***) 22 12,70 35 – 3,3≤S≤4,8 (QC22***) 6 7 C Boring bars – QC series S 20 K – QC 16 15 R 25 1 2 3 4 5 6 7 8 Shank type Diameter [mm] Length [mm] D Code Material Code Description Code Description S Steel shank 16 16 H 100 C Solid carbide shank 20 20 K 125 A Solid carbide shank (IC) 25 25 M 150 1 2 3 Cutting edge length [mm] Cutting width range [mm] Code I.C Code Insert size Series 11 6,35 15 0,5≤S<1,8 (QC11***) 0,5≤S<1,8 (QC16***) 1,0≤S<2,3 (QC22***) 16 9,252 25 1,8≤S<3,0 (QC11***) 1,8≤S<3,0 (QC16***) 2,3≤S<3,3 (QC22***) E 22 12,70 35 – – 3,3≤S≤4,8 (QC22***) 4 5 6 Cutting direction Starting diameter [mm] Code Description Code Ø Code Ø R Right 16 16 25 25 L Left 20 20 35 35 7 8 A 398