|
I've only glanced at the instructions on this alteration, but I can tell you that good twist drills should do the trick, and one thing you can do to minimize the "swarf" getting where you don't want it, is to cover the drill in grease.
And one thing to know about power drills, slower is never worse, always better.
Find a drill motor that has a good speed control on the trigger, and run the damn thing just as slow as you can. That with the grease should get next to no swarf in the transmission.
Now if that is not enough for you, be prepared to open the case and jam a greasy rag up against the back side of where the hole will open up.
|