Technical Information HSK Shank Tools Taper and Face Quick-Reference Identification (continued) HSK-E balanced-by-design for higher speeds HSK-T HSK-F balanced-by-design with greater flange support for higher speeds Forms E and F Form T Forms E and F with automatic tool change are also variations of forms A and B. Form T shanks are similar to form A, but these tools offer a tighter keyway that These forms are intended for high-speed machining. Design features, such as drive reduces cutting height variation. This gives form T improved repeatability over slots, the orientation notch, and chip holes, have been removed to help eliminate form A. These shanks have new centerline technology for variance and high imbalance. As a result, these forms are driven by the locking taper and are suitable productivity. They are also available in a wide range of standard toolholders. only for light machining applications such as high-speed metalcutting and woodworking machines. Form E offers five different shank sizes ranging from 25–63mm (.984–2.480") flange diameter. There are three shank sizes for form F from 50–80mm (1.969–3.150") diameter on the flange. flange diameter D forms D2 D4 LS L2 L7 A and T form B form C form D form E form F mm mm mm mm mm - - - - 25 - 19 14 13 2,5 6 32 40 32 40 32 - 24 17 16 3,2 8 40 50 40 50 40 50 30 21 20 4 8 50 63 50 63 50 63 38 26 25 5 10 63 80 63 80 63 80 48 34 32 6,3 10 80 100 80 100 - - 60 42 40 8 12,5 100 125 100 - - - 75 53 50 10 12,5 125 160 - - - - 95 67 63 12,5 16 160 - - - - - 120 85 80 16 16 WIDIA™ primary offering Secondary styles available upon request WWW.WIDIA.COM K47 Technical Information