The flutes are therefore preferably not configured in opposite directions to one another, since, in this case and in the case of drilling into {HEAD ~ solid material}, if the reaming chips are combined with the main chips, the risk of chips backing up would exist on {TAIL ~ account} of the different directions of flow 
The flutes are therefore preferably not configured in opposite directions to one another , since , in this case and in the case of drilling into { HEAD ~ solid material } , if the reaming chips are combined with the main chips , the risk of chips backing up would exist on { TAIL ~ account } of the different directions of flow
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH