L 2 L 3 Ref 58-60 HRc L 1 Ref CSI GTI ER-ST (tapping) d min max DIN 6499 ER Tapping Attachments with Straight Shanks SS D 3 Flb Flf D 1 Flb Flf kg Designation SS CSI Tap min Tap max d min d max D 3 D 1 L 1 L L 2 Flf Flb GTI ER11 ST16X150 M (1) 16 ER11 M2 M7 0.5 7.0 16.00 - 19.0 - 150.00 6.0 3.0 0.18 GTI ER16 ST20X80 20 ER16 M3 M10 0.5 10.0 28.00 29.50 24.6 41.60 80.00 8.0 3.0 0.29 GTI ER20 ST20X80 20 ER20 M4 M14 1.0 13.0 34.00 33.50 28.0 49.00 80.00 8.0 3.0 0.35 GTI ER25 ST25X80 25 ER25 M5 M16 1.0 16.0 42.00 40.50 32.0 53.00 80.00 9.0 4.0 0.55 GTI ER32 ST25X80 25 ER32 M6 M20 1.0 16.0 50.00 56.50 32.0 77.20 80.00 9.0 4.0 1.16 GTI ER40 ST32X80 32 ER40 M6 M27 2.0 20.0 63.00 56.50 51.0 95.20 80.00 9.0 4.0 1.66 (1) Without a clamping flat. 947-950 979-980 981 941 Tapping & Reaming Devices SETS 58-60 HRc CSI KIT GTI ER-ST d min max Contains a DIN 6499 ER Tapping Attachment with a Straight SS Shank and a Set of Spring Collets in Various Bore Sizes Designation SS CSI d Range KIT GTI ER11 ST16X150 4M 16 ER11 3,4,5,6 KIT GTI ER16 ST20X80 4 20 ER16 4,5,6,7 KIT GTI ER20 ST20X80 4 20 ER20 5,6,8,9 KIT GTI ER25 ST25X80 5 25 ER25 6,7,9,11,12 KIT GTI ER32 ST25X80 6 32 ER32 6,7,9,11,12,16 • Kit includes GTI,collets and wrench. Kit GTI ER11 Tapping Attachment Kit 947-950 979-980 981 941 939