ER COLLET STANDARD 30˚ 8˚ A D B L DIN 6499 RUNOUT PRECISION L L D D ICTC Precision ICTC “AA” Ultra Precision DIN 6499(1) Inch mm Inch mm Standard -Inch mm Inch mm Inch mm .24 6 .039- .063 1.0- 1.6 .0004 0.01 .0002 0.005 .39 10 .063- .118 1.6- 3.0 .0004 0.01 .0002 0.005 .0006 0.015 .63 16 .118- .236 3.0- 6.0 .0004 0.01 .0002 0.005 .0006 0.015 .98 25 .236- .394 6.0-10.0 .0004 0.01 .0002 0.005 .0006 0.015 1.57 40 .394- .709 10.0-18.0 .0004 0.01 .0002 0.005 .0008 0.020 1.97 50 .709-1.024 18.0-26.0 .0004 0.01 .0002 0.005 .0008 0.020 2.36 60 1.024-1.339 26.0-34.0 .0010 0.025 (1) ER50 DIN6499 ER SIZES Type A Inch A mm B Inch B mm ER-11 .45 11.5 .71 18 ER-16 .67 17 1.06 27 ER-20 .83 21 1.22 31 ER-25 1.02 26 1.38 35 ER-32 1.30 33 1.57 40 ER-40 1.61 41 1.81 46 ER-50 2.05 52 2.36 60 ER - Sealed Collet - Two Types: Standard shanks which can be used in sealed collets Plain Shank Weldon/DIN 1835/B Whistle Notch Sealed Collet Jet Sealed Collet Jet2 Note: The front end of the sealed collet should be located beyond Weldon or the whistle notch. For straight shank cutting tools With angular double nozzles. with internal coolant supply. Coolant flow is direct to the cutting edge, for use with standard straight shank cutting tools (without coolant hole). 839