It's okay for the #30's and not so good on the #40's but for everything
larger it kicks butt! CW
----- Original Message -----
From: "Ken" <klehman@albedo.net>
To: <rebel-builders@dcsol.com>
Sent: Tuesday, August 31, 2010 4:30 AM
Subject: Re: [rebel-builders] Drilling through steel leaf springs:
work-hardenin
I've never found a drill sharpening jig that works very well so I just
sharpen them by hand on a bench grinder. The smaller ones sometimes take
a couple of tries to get them right. If one cutting edge is larger than
the other it might cut a tiny bit oversize so I do not usually sharpen
the #30 size when drilling rivet holes in aluminum but I certainly do
for drilling stainless. If they don't cut well just try again.
Ken
schaumr@dcsol.com wrote:Thanks to all on the advice,
Got the job done with some overpriced "titanium" bits from the local
hardware
store (said they were for stainless steel, so I thought they would be
adequate). Stepped up from 1/8, 1/4, 9/32, and finally 3/8" (on the
drill
press)
Used 2-stroke oil as cutting fluid and stopped routinely to re-apply oil
to the
work piece and/or change bit size. With the largest bit, I got the sense
it
had to struggle more and started to sound like it was grinding again (no
chips
being produced). It got through, but I'm not sure how the bit faired.
Regardless, it was educational. I like the idea of resharpening....
Ken.....does
one use a jig?
Rob
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