Through Hulls |
02/07/08 |
I’ve drilled out the hole in stages. Here is the final run from 15.5mm to 16mm with the reamer. I’m using a floating reamer holder which compensates for any tiny misalignment of the machine spindle to the bore. Using the “Half speed, twice feed” rule, I ran this through at 140 rpm quite fast using Trefolex and not coolant. |
Submersible Build Log |