Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work.

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Default Sharpening Forstners

Any trick, or just get a grinder or file and try to duplicate the angle? It
looks sharp, but it smokes a bit when cutting. Maybe I hit a knot.

Steve


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Default Sharpening Forstners

SteveB wrote:
Any trick, or just get a grinder or file and try to duplicate the
angle? It looks sharp, but it smokes a bit when cutting. Maybe I
hit a knot.
Steve


Be sure you sharpen only on the ID and the back side of the cutting
edges . I find a diamond stone (HF cheapies) works very well on these , and
on router bits . Got one small forstner type that some idiot ground a bevel
on the outside . I use it to pin drawings to the wall . ( I work in a
cabinet shop .)
--

Snag aka OSG #1
'90 Ultra , "Strider"
The road goes on forever ...
none to one to reply


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Default Sharpening Forstners

On Sun, 18 Nov 2007 16:08:46 -0800, with neither quill nor qualm,
"SteveB" quickly quoth:

Any trick, or just get a grinder or file and try to duplicate the angle? It
looks sharp, but it smokes a bit when cutting. Maybe I hit a knot.


Use an auger bit file if you have clearance, Steve. If you have the
split-side bits, a small honing stone will fit the throat to hone the
back of the flute, or chip-breaker.

I heartily recommend Leonard Lee's (yes, of Lee Valley fame) book,
_The Complete Guide to Sharpening_. He devotes several pages to
forstner bits.

--
"Given the low level of competence among politicians,
every American should become a Libertarian."
-- Charley Reese, Alameda Times-Star (California), June 17, 2003
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