I'm checking off the ones I want from the LeeValley catalogue...HSS. I
have the important one (35 mm) in carbide already. Paid stupid money
for it out of the Hafele catalogue. Mind you, it has drilled thousands
of hinge-cups in justabout every kind of material and is still just
So kind of you to ask. She had some setbacks but battled her way
through. Then she had a 7 hour operation on her neck after which there
has been sufficient improvement for her to go home next Thursday. She's
not walking yet but has again taken up her first love; painting. The
improvements over the last 3 weeks has been nothing short of
remarkable. She buzzes around in her chair now and ramps have been
built around the house so she'll be able to feed herself, watch her new
flatscreen and she will be on-line soon.
We are all very encouraged. Her spirits are very high.
The big benefit of carbide is its temperature resistance and long wear. Big
downsides are that it's relatively difficult to sharpen, doesn't take as
fine an edge as steel, and is relatively brittle.
Unless I knew in advance that I was going to be doing high volume or working
wth some of the hard and abrasive exotics I'd go with HSS.
Personally I've got an old Chinese-made carbon steel set that has drilled
everything I've thrown at it and never given me a problem, but I almost
always use the drill press and adhere to the speeds marked inside the top of
the box lid--they work fine in the hand-held drill but generally if I need
Forstner precision I want the precise positioning I can get with the drill
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