Общий каталог Ingersoll 2013 - 2014 - страница 272

MAXIMUM RUNOUT Rotational runout Stationary runout Max’ .0008" Max’ .0008" DRILLING LIMITATION Inclined surface Cross hole Interrupted cutting COOLANT RECOMMENDATIONS Internal External (Up to 2xD) Dry RECOMMENDED PILOTING PROCEDURE FOR 8XD OR 12XD 1. Prior to using 8xD or 12xD drills, it is recommended to drill pilot holes from 0.5xD~1.5xD using a short drill ( 1.5xD holder is recommended). 2. Approach the pre-hole at reduced speed and feed until 2~5mm from it’s bottom depth. 3. Increase up to recommended speed and maintain feed rate for 2~3 seconds applying coolant. 4. Start drilling at the recommended feed rate. 272