686 Каталог INGERSOLL 2011 Режущий инструмент и инструментальная оснастка Стр.688

Каталог INGERSOLL 2011 Инструмент и оснастка Стр. 688 0686 Lab2u

MAXIMUM OFFSET DIMENSIONS OFFSETTING ROTATING INDEXABLE DRILLS Offsetting indexable drills in a positive direction has proven to be beneficial in several ways. Reports indicate that it improves chip evacuation when applied to machines with inadequate coolant. Offsetting can reduce chatter and noticeably improve surface finish when cutting materials like 316 stainless steel. It also allows drilling a full range of hole diameters with a minimum of drill sizes. A complete list of "Maximum Offset dimensions for each standard drill size is shown here. Remember only 2:1 and 3:1 L D ratio drills are recommended for this type of work because of their rigidity. Z Drill Diameter X Max. Radial Offset Max. offset Dia. .500 .010 .520 .531 .010 .551 .563 .010 .583 .594 .010 .614 .625 .020 .665 .657 .020 .697 .688 .020 .728 .719 .020 .759 .750 .020 .790 .781 .020 .821 .813 .010 .833 .844 .020 .884 .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