The shank is roughly a 7/16"(11mm) A/F hex. I chucked it in my drill press and it appears to run true. A 5/16"-24 setscrew secures the pilot drill, so the pilot drill is replaceable. Here's a view of it taken apart. Note the flat on the pilot drill's shank. A regular drill assigned as a replacement will have to have a similar flat ground on it.
- - -
Stripping off the paint revealed that that it was "MADE IN U.S.A.", but no maker's name. I don't know what they're ashamed of -- it's a perfectly good hole saw.
Here's a way to grind a flat on a drill's shank.
And here it is all painted and back together with its new pilot drill.
Now I've gone and made it too nice to actually use -- I'll scuff the paint.
It can go in the cabinet with my other hole saws, in a protective wrapper.
# # #
# # #
No comments:
Post a Comment