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Posted by Proctologically Violated©® on July 1, 2009, 6:46 pm
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Awl --
Some Qs came up some time ago regarding these drill sets, with most comments
being pretty favorable (including my own), esp considering the price:
$20-39, TiN coated, etc. 135 deg point (above 1/8, iirc), but with 3/8
shanks, above 3/8.
My main criteria was longevity, and they seem to last OK, overall
quality/case seemed decent.
Never thought to check them via measuring the holes they drilled.
Goodgawd.....
I was form tapping 5/16-18 holes, which requires an L drill (.290), and
after some peculiarities with the inserted set screws, I determined that the
drilled holes were coming out at .304 -- !!!! Holy shit......
WITH spotting!! In a Fadal!!!!!
AND, the drill actually does measure 290!!!
How does a .290 drill that actually measures .290 drill a .304 hole??????
With no ostensible wobble, or other defects.
And yet, some bit sizes drill close to their size, so you cain't even
*predict* the error. The problem *seems* to be particularly bad on the
letter drills, judging from previous travails that I had not pegged to
regularly errant bits.
Just an fyi.
I guess the moral to the story is, You don't always get what you pay for,
but if you don't pay, the odds much much less..... like an effing accurate
hole, ferchrissakes.
And, of course, I have a *bunch* of these drill sets..... I guess I'll use
them to drill clearance holes for screws.
--
Mr. PV'd
Mae West (yer fav CongressShill) to the Gangster (yer fav Lobbyist):
Hey, Big Boy, is that a wad (of cash) in yer pocket, or are you just
glad to see me??
Experiment on Homo Sapiens -- CEOs, Lawyers, and Politicians, in
particular.
Spare the animals.
Click here every day to feed an animal that needs you today.
www.theanimalrescuesite.com/
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Posted by BottleBob on July 1, 2009, 7:16 pm
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Proctologically Violated©® wrote:
> Awl --
>
> Some Qs came up some time ago regarding these drill sets, with most comments
> being pretty favorable (including my own), esp considering the price:
> $20-39, TiN coated, etc. 135 deg point (above 1/8, iirc), but with 3/8
> shanks, above 3/8.
>
> My main criteria was longevity, and they seem to last OK, overall
> quality/case seemed decent.
> Never thought to check them via measuring the holes they drilled.
>
> Goodgawd.....
>
> I was form tapping 5/16-18 holes, which requires an L drill (.290), and
> after some peculiarities with the inserted set screws, I determined that the
> drilled holes were coming out at .304 -- !!!! Holy shit......
> WITH spotting!! In a Fadal!!!!!
>
> AND, the drill actually does measure 290!!!
>
> How does a .290 drill that actually measures .290 drill a .304 hole??????
> With no ostensible wobble, or other defects.
>
> And yet, some bit sizes drill close to their size, so you cain't even
> *predict* the error. The problem *seems* to be particularly bad on the
> letter drills, judging from previous travails that I had not pegged to
> regularly errant bits.
>
> Just an fyi.
>
> I guess the moral to the story is, You don't always get what you pay for,
> but if you don't pay, the odds much much less..... like an effing accurate
> hole, ferchrissakes.
>
> And, of course, I have a *bunch* of these drill sets..... I guess I'll use
> them to drill clearance holes for screws.
PV:
If the drill's lips aren't the same length (or angle), then drill may
drill oversize. You could try resharpening them, that should fix the
problem.
--
BottleBob
http://home.earthlink.net/~bottlbob
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Posted by jon_banquer on July 1, 2009, 8:23 pm
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> PV:
>
> =A0 =A0 =A0 =A0 If the drill's lips aren't the same length (or angle), th=
en drill may
> drill oversize. =A0You could try resharpening them, that should fix the
> problem.
>
> --
> BottleBobhttp://home.earthlink.net/~bottlbob
I could sell the idiot my close to brand new Darex M5 so he could
resharpen all / most of his cheap Chinese drill bits. This way the
moron can tell everyone what a great deal he got and not tell anyone
he had to reshapen and point split most of his cheap Chinese drill
bits. Maybe your former boss can sell him one of those cheap Chinese
Kurt knock off vises to compliment those Chinese drill bits he got
such a deal on. What a moron.
Darex M5 drill sharpener pics posted on request.
Jon Banquer
San Diego, CA
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Posted by Proctologically Violated©® on July 1, 2009, 9:07 pm
Please log in for more thread options
> PV:
>
> If the drill's lips aren't the same length (or angle), then drill may
> drill oversize. You could try resharpening them, that should fix the
> problem.
>
> --
> BottleBobhttp://home.earthlink.net/~bottlbob
I could sell the idiot my close to brand new Darex M5 so he could
resharpen all / most of his cheap Chinese drill bits. This way the
moron can tell everyone what a great deal he got and not tell anyone
he had to reshapen and point split most of his cheap Chinese drill
bits. Maybe your former boss can sell him one of those cheap Chinese
Kurt knock off vises to compliment those Chinese drill bits he got
such a deal on. What a moron.
Darex M5 drill sharpener pics posted on request.
=======================================
People think I hate Jon Banquer because he gave me (and proly many others)
the STD doctors now call B. coli, for Banquerichiae coli.
Well, I don't hate Jon Banquer.
In fact, when Quallcom finally wakes up and fires Jon Banquer's utterly
useless and still-diseased ass, and he has to move back with his Moms in CT,
I'll pay his busfare to Yonkers, and pay him $25 to mow my front lawn, once
a week.
He can pretend he's operating a gasoline-powered face mill, and he can think
of the height of the grass as the Z axis.
And, I'm sure he'll fuck that up, too, but I'll pay him anyway.
--
Mr. PV'd
Mae West (yer fav CongressShill) to the Gangster (yer fav Lobbyist):
Hey, Big Boy, is that a wad (of cash) in yer pocket, or are you just
glad to see me??
Experiment on Homo Sapiens -- CEOs, Lawyers, and Politicians, in
particular.
Spare the animals.
Click here every day to feed an animal that needs you today.
www.theanimalrescuesite.com/
Jon Banquer
San Diego, CA
|
|
Posted by jon_banquer on July 1, 2009, 9:43 pm
Please log in for more thread options
> I could sell the idiot my close to brand new Darex M5 so he could
> resharpen all / most of his cheap Chinese drill bits. This way the
> moron can tell everyone what a great deal he got =A0and not tell anyone
> he had to reshapen and point split most of his cheap Chinese drill
> bits. Maybe your former boss can sell him one of those cheap Chinese
> Kurt knock off vises to compliment those Chinese drill bits he got
> such a deal on. What a moron.
>
> Darex M5 drill sharpener pics posted on request.
>
> Jon Banquer
> San Diego, CA
I guess drilling and drills are exempt from Kriss Hogg's "extensive
background in machining and manufacturing processes". For Kriss Hogg's
lies see:
http://www.aperfectdealer.com/nbnews/fall_04_vol3/story4.html
What's next for this world-class liar / loser? No doubt something like
Kriss Hogg buys a "Drill Doctor" and then sues them for malpractice
when it doesn't work like he thinks it should.
Jon Banquer
San Diego, CA
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>
> Some Qs came up some time ago regarding these drill sets, with most comments
> being pretty favorable (including my own), esp considering the price:
> $20-39, TiN coated, etc. 135 deg point (above 1/8, iirc), but with 3/8
> shanks, above 3/8.
>
> My main criteria was longevity, and they seem to last OK, overall
> quality/case seemed decent.
> Never thought to check them via measuring the holes they drilled.
>
> Goodgawd.....
>
> I was form tapping 5/16-18 holes, which requires an L drill (.290), and
> after some peculiarities with the inserted set screws, I determined that the
> drilled holes were coming out at .304 -- !!!! Holy shit......
> WITH spotting!! In a Fadal!!!!!
>
> AND, the drill actually does measure 290!!!
>
> How does a .290 drill that actually measures .290 drill a .304 hole??????
> With no ostensible wobble, or other defects.
>
> And yet, some bit sizes drill close to their size, so you cain't even
> *predict* the error. The problem *seems* to be particularly bad on the
> letter drills, judging from previous travails that I had not pegged to
> regularly errant bits.
>
> Just an fyi.
>
> I guess the moral to the story is, You don't always get what you pay for,
> but if you don't pay, the odds much much less..... like an effing accurate
> hole, ferchrissakes.
>
> And, of course, I have a *bunch* of these drill sets..... I guess I'll use
> them to drill clearance holes for screws.