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        Discussion Drilling carbon props

#1 whyrudy Nov 18, 2012 08:23 PM

Drilling carbon props
I have a couple of PT props and need to enlarge center hole from 6mm to 8mm. Iíve 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?

#2 Troy Nov 18, 2012 11:57 PM

Don't drill it, step ream it:

#3 A10FLYR Nov 19, 2012 09:25 AM

+1 ^

#4 sarmoby Nov 22, 2012 11:19 PM

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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