DT
posted by NATHAN .
For my dt homework i need to find the definition of pillar drill, portable drill and countersink . i have found the definitions of pillar drill and countersink but i am finding it hard to find the defintion of portable drill. i know it`s been asked before
thanks for help

I know I gave you this answer yesterday. Look here.
http://www.jiskha.com/search/search.cgi?query=portable+drill
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what is the definition of 1/ portable drill 2/ pillar drill 3/countersink 4/pilot hole thanks for your help 
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