Общий каталог Ingersoll 2011 - страница 686

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MAXIMUM OFFSET DIMENSIONS OFFSETTING ROTATING INDEXABLE DRILLS Z Drill X Max. Diameter Radial Offset Max. offset Dia. Offsetting indexable drills in a positive direction has .500 .010 .520 proven to be beneficial in several ways. Reports .531 .010 .551 indicate that it improves chip evacuation when applied .563 .010 .583 to machines with inadequate coolant. .594 .010 .614 .625 .020 .665 Offsetting can reduce chatter and noticeably improvesurface finish when cutting materials like 316 stainlesssteel. It also allows drilling a full range of holediameters with a minimum of drill sizes..657.020.688.020.719.020.750.020.697.728.759.790 A complete list of “Maximum Offset” dimensions for .781 .020 .821 each standard drill size is shown here. Remember, .813 .010 .833 only 2:1 and 3:1 L/D ratio drills are recommended for .844 .020 .884 this type of work because of their rigidity. .875 .020 .915 .906 .020 .946 .938 .020 .978 .969 .020 1.009 1.000 .010 1.020 1.031 .010 1.051 1.063 .010 1.083 1.094 .020 1.134 1.125 .020 1.165 1.156 .020 1.196 1.187 .020 1.227 1.219 .010 1.239 1.250 .010 1.270 1.281 .010 1.301 1.312 .010 1.332 1.343 .020 1.383 1.375 .020 1.415 1.406 .020 1.446 1.437 .020 1.477 1.468 .020 1.508 1.500 .020 1.540 1.531 .020 1.571 1.562 .010 1.582 1.594 .010 1.614 1.625 .010 1.645 1.687 .020 1.727 1.719 .020 1.759 1.750 .020 1.790 1.781 .020 1.821 1.813 .020 1.853 1.875 .010 1.895 1.937 .010 1.957 1.969 0.00 - no offset possible 2.000 0.00 - no offset possible 2.125 .010 2.145 2.250 .040 2.330 2.375 .015 2.405 2.500 .015 2.530 2.625 .015 2.655 2.750 0.00 - no offset possible 2.875 .020 2.915 3.000 .015 3.030 3.250 .060 3.370 688