BD G1 InsertExt. ToolholderInt. ToolholderThreadingGroovingMiniature toolMilling cutterEndmillDrilling toolTooling SystemUser's GuideIndex B T- E R collet A ER collet chuck holder, short type (BT) LFSSCSILB B CRKS J C Designation SS CSI Range LF LB BD J CRKS G1 BT30ER20SHORT 30 ER20 1-13 27.2 5.2 25 M12 M12 M25x1.5 BT40ER32SHORTBT40ER40SHORTBT50ER32SHORT 40 ER32 2-20 36.5 9.540ER403-2646.59.550ER322-2047.59.5405040M12M16 M40x1.5M16M16M50x1.5M22x1.5M24M40x1.5 D BT50ER32SHORTB 50 ER32 2-20 47.5 9.5 40 M22X1.5 M24 M40X1.5 BT50ER40SHORT 50 ER40 3-26 47.5 9.5 50 M28x1.5 M24 M50x1.5 • Applicable for 10 MPa coolant• Add B at the end of the designation for the item with coolant through the flange. Option: Wrench for ER collet E F G H I J K L Reference pages M ER collet Nut Wrench Preset screw Pull stud K125 K151 K152 K153 K148 Tungaloy K091