It's funny to find this discussion on the list today, we have been
talking about our drill doctor since this morning.
We use a lot of 5/8"x18" Irwin installer bits. We like them because they
are reasonably priced, long enough to get through most of the log cabins
here, and come with a 90deg angle point as opposed to the more common
118deg angle point.
We run them into the ground though, which sucks the next time you have
to drill through thinner wood siding or shingles because it will often
split the wood on the exit hole, so you have to keep them sharp.
We have a drill doctor, but it just does the 118deg angle which doesn't
bite as well.
Spent part of the day looking for a drill doctor with a 90deg or better
angle, but it seems they don't make one. We'd probably be better off
buying a table grinding wheel and a drill bit jig, but that can get spendy.
Our end result decision is to just buy a crap ton of irwin bits. If
anybody has a source for these, we'd like to buy in bulk at cheaper than
$11/bit (local pricing).
Josh Reynolds
CIO, SPITwSPOTS
www.spitwspots.com
On 06/03/2015 04:12 PM, Rory Conaway wrote:
I bought a drill doctor and even though the bits looked good, they
didn�t work as well. We do mostly wood but installers are sometimes
too lazy to change the bit when they get to the stucco and that dulls
them faster.
Rory
*From:*Af [mailto:[email protected]] *On Behalf Of *Adam Moffett
*Sent:* Wednesday, June 3, 2015 3:50 PM
*To:* [email protected]
*Subject:* Re: [AFMUG] Sharpening Drill Bits
*doing it with a ben*ch grinder*.
I was at a machine shop where they were doing it with a ben
You can do it by hand with a bit of practice.
�
*From:*Glen Waldrop <mailto:[email protected]>
*Sent:*Wednesday, June 03, 2015 4:24 PM
*To:*[email protected] <mailto:[email protected]>
*Subject:*Re: [AFMUG] Sharpening Drill Bits
�
My dad has always sharpened his own, so I tend to do the same.
In my experience, if used in wood they can be sharpened with
little issue. If you drill through metal, buy a new one.
�
It loses some of the hardness on the edge. It really needs to
be tempered again after sharpening.
�
�
----- Original Message -----
*From:*Rory Conaway <mailto:[email protected]>
*To:*[email protected] <mailto:[email protected]>
*Sent:*Wednesday, June 03, 2015 5:18 PM
*Subject:*[AFMUG] Sharpening Drill Bits
�
We are paying $15-$25 for longer drill bits.� When they
start to get dull, just wondering if anyone has had
success sharpening them or do you just buy new ones?
�
*Rory Conaway **� Triad Wireless �**CEO*
*4226 S. 37^th Street � Phoenix � AZ 85040*
*602-426-0542*
*[email protected] <mailto:[email protected]>*
*www.triadwireless.net <http://www.triadwireless.net>*
�
*�You may be an engineer if your idea of good
interpersonal communication means getting the decimal
point in the right place.� � Unknown*
�
