Finally, one I can answer. On the pier drilling machine I used to own,
there was an additional blade that used centrifugal force to bell the hole
bottom. The trick was turn the auger faster to bell the hole, then pull
back extra hard/fast to get the cuttings and bit out of the hole. This of
course doesn't work for square holes.....
Floyd Rodgers KC5QBC
Multi ended candle burning artist in training
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|