Page 20 - Demo

18 ISCAR GENERAL DRILLING HANDBOOKClamping PartIntended for clamping the drill into the tool holder. The type and size of a drill shank depends on the chuck in which the drill will be clamped. Various shank and chuck combinations can enhance performance, such as increasing torque and improving centering accuracy. The most common types of shanks are the round shank, side lock shank, and whistle notch shank.%u2022 Plain Cylindrical Shank / Round Shank - Compatible with hydraulic and collet chucks, it reduces the runout of the cutting edge, which is crucial for drill lengths over 5xD.%u2022 Side Lock Shank %u2013 Features a cylindrical shank with one or two parallel flats for side clamping systems. This design provides a secure and rigid clamp in the tool holder, preventing the drill from being pulled outward. It offers high torque transmission, making it suitable for heavy machining operations.%u2022 Cylindrical Shank with Inclined Clamping Surface / Whistle Notch Shank %u2013 An analog of side lock shanks with the main difference of the notch angled at 2%u00b0 relative to the central axis of the drill.Plain Cylindrical Shank / Round Shank (DIN 1835-A and DIN 6535-HA)Side Lock ShankFlatted Cylindrical Shank / Weldon(DIN 1835-B and DIN 6535-HB)One Flat Shank(ISO 9266)One ParallelFlat Shank(ISO 9266)Cylindrical Shank with Inclined Clamping Surface / Whistle NotchShank(DIN 1835-E and DIN 6535-HE)