I had a B&D drill sharpener given to me and it works OK if you have
enough patience to do only brief grinds at a time with cooling between
grinds. Seems to take forever, and DOES require one to hold the bit in
exactly the instructed fashion to get repeatable cuts. IMHO it ain't
worth much.
The best cheapo grinder arrangement I found was an old accessory for a
face-grinding-wheel. You planted the bit in a holder, then swung the
bit across the face of the grinder. Required some careful holding of
the assembly (a bit sloppy in its pivot as I recall) but would cut fast
and made the right relief angle behind the cutting edge.
Benn
----- Original Message -----
From: "Keith Turk" <kturk@ala.net>
To: "Doug Odom" <dlodom@charter.net>; "Land Speed List"
<land-speed@autox.team.net>
Sent: Friday, August 26, 2005 1:22 AM
Subject: Re: Drill Doctor
> Doug I'm not wild about the way it cuts small bits... but it seems to
work
> perfectly on bigger ones....
>
> My great grandfather was a master machinist and left me all his old
hand
> tools... which included hundreds of drill bits.... Many of them were
> virtually stubs of thier former self's, but they were all very
sharp...
> seems the only thing he could really do in his later years was sharpen
drill
> bits.... In the course of using them I'd used up all that sharping
and
> could never really get the nack of sharpening one correctly... the
drill
> doctor kind of gave me a leg up on now that process works...
>
> one of the things I've found with it is to be very particular about
how the
> bit is set in the holder.... and I usually check it a couple of times
after
> I tighten it up.
>
> Keith
|