Countersink the first few layers with a diamond abrasive countersink first. Then try to run a tap. But it seems to me the nature of laminated carbon will not lend itself to using regular taps since it will just delam the fibers rather then cut them.
Countersink the first few layers with a diamond abrasive countersink first. Then try to run a tap. But it seems to me the nature of laminated carbon will not lend itself to using regular taps since it will just delam the fibers rather then cut them.