Drilling carbon props - RC Groups
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Nov 18, 2012, 09:23 PM
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Drilling carbon props


I have a couple of PT props and need to enlarge center hole from 6mm to 8mm. I’ve never drilled in carbon before and better safe than sorry. I have an 8mm drill and always use a backing board for drill through most materials. What have you done?
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Nov 19, 2012, 12:57 AM
Caution:Makes sharp left turns
Troy's Avatar
Don't drill it, step ream it:
http://www3.towerhobbies.com/cgi-bin...P?I=LXG941&P=8
Nov 19, 2012, 10:25 AM
Dean
A10FLYR's Avatar
+1 ^
Nov 23, 2012, 12:19 AM
Composites guy
What they said AND put masking tape on both sides.
Use abrasive(diamond if available) bits and coolant(water is okay) if doing significant work.
Also keeps dust down.


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