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J. Clarke J. Clarke is offline
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Default drill press workaround?

wrote in message
oups.com...
I dont think it's carbide. I think its just carbon steel. Should
those be run slower?
the bit was new but i probably have dulled it..?


There should be a speed chart provided with the bits. If not, here's a
conservative one that also has sharpening procedures
http://www.wwch.org/TechData/Forstner_Bit_Speeds.jpg . These speeds are
somewhat lower than the "standard" charts. If the one with the bits has
lower speeds they should be followed. The bits may also be marked with
maximum speeds.

If it's carbon steel then be very careful with the speed--they can be
overheated easily--if the metal has turned blue then the bit is ruined, just
like a chisel that has been ground too aggressively.

J. Clarke wrote:
wrote in message
oups.com...
yup, that was it. I found that little set screw that allowed me to
turn the head. Sorry, havent used much drill press before. But thats
definately handy to know!
I just wish my 1" forstner wouldn't take forever to drill! I even
switched the rpm all the up, still seems to take a while...
thanks for the tips!


I hope that 's a carbide Forstner. Turning the speed up on steel
Forstners,
especially carbon steel, is a good way to ruin the bit.

If it's cutting slowly odds are that it's dull.

Also, in deep holes Forstners aren't self-clearing--you have to pull them
out and clear the hole occasionally.

If it's a deep hole you might want to start with a 3/4" auger or twist
drill
and the finish with the Forstner.

wrote:
In article .com,
wrote:
have a 4x4 post that i want to drill a straight hole into the top
of,
however the post is longer than the drill press is tall. The base of
the drill stand is what gets in the way if I put the press on a bench
or something. Anyone have a good work around to this?


On lots of drill presses, the head is retained only by a set screw or
clamp bolt or 2. If you loosen or remove it you may be able to swing
the head around so it is not over the base. Likewise, you may be able
to loosen the base from the column and swing it at that point also.


--
No dumb questions, just dumb answers.

Larry Wasserman - Baltimore, Maryland -