Quote:
Originally Posted by Lostheart
Gil, I'd give my right arm to know where you got your stepped drill bit from...was it custom made?
Drilling ferrules is such a PITA and this would sure speed up the job!
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Now seriously...
Here's one solution (Cheap but works very well):
get
this step drill bit or similar (they're all over the place).
You will need to do a little work on the tall bit
3/16'' to 1/2'' Six Step Bit (3/16'', 1/4'', 5/16'', 3/8'', 7/16'', 1/2'')
Cut the 3/16" and file the 1/4" section to 1/8".
File half of the 5/16" section to 1/8" as well to shorten it to 1/4" (depth of the 5/16")
Now you'll have a 1/8" lead for the already drilled 1/8" hole + 5/16" that follows 1/4" deep + 3/8".
Now you'll need to put a collar on the 3/8" section at 1.7mm and you're done.
