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View Full Version : What would you call this tool? Bolt drill guide?


Michael Horowitz
January 2nd 07, 03:10 PM
Some years ago, I watched an A&P drill a shank so it would accept a
cotter pin.

Was a metal block into which various sized bolt could be screwn into,
each with a hole perpendicular to the shaft that would guide a drill
bit.

Anyone know what this might be called? - Mike

Chief McGee
January 2nd 07, 04:52 PM
http://mikes.automated-shops.com/cgi-bin/webc.cgi/st_prod.html?p_prodid=818&p_catid=

JP[_1_]
January 2nd 07, 04:59 PM
These are probably what you are looking for:

http://www.aircraft-tool.com/pdf/catalogs/ECat2006.pdf
page 75 shows three versions:
-Safety wire drill jig
-AERO SafTblock
-NUT SafTblock


http://www.ustool.com/catalog.pdf
page 96 shows some Drill Jigs similar to what you descibed.


JP



"Michael Horowitz" > wrote in
...
> Some years ago, I watched an A&P drill a shank so it would accept a
> cotter pin.
>
> Was a metal block into which various sized bolt could be screwn into,
> each with a hole perpendicular to the shaft that would guide a drill
> bit.
>
> Anyone know what this might be called? - Mike

Michael Horowitz
January 2nd 07, 05:37 PM
Thank to all - Mike

Roger[_4_]
January 3rd 07, 12:25 AM
On Tue, 02 Jan 2007 10:10:23 -0500, Michael Horowitz
> wrote:

>Some years ago, I watched an A&P drill a shank so it would accept a
>cotter pin.
>
>Was a metal block into which various sized bolt could be screwn into,
>each with a hole perpendicular to the shaft that would guide a drill
>bit.
>
>Anyone know what this might be called? - Mike

I would call it a metal block threaded for various size bolts with
perpendicular drill bit guides...

I don't think it has a specific name other than bolt drilling tool or
bolt drilling block.

There is also a V-Block with a series of drill holes that you just lay
on the bolt and have at it. This has the advantage, or disadvantage
(depending on how you look at it) as to allowing you to drill what
ever size hole you want as opposed to what is properly required.
You'll find these around machine shops.


Roger Halstead (K8RI & ARRL life member)
(N833R, S# CD-2 Worlds oldest Debonair)
www.rogerhalstead.com

mhorowit
January 3rd 07, 12:39 PM
Roger wrote:
> On Tue, 02 Jan 2007 10:10:23 -0500, Michael Horowitz
> > wrote:

>
> There is also a V-Block with a series of drill holes that you just lay
> on the bolt and have at it. This has the advantage, or disadvantage
> (depending on how you look at it) as to allowing you to drill what
> ever size hole you want as opposed to what is properly required.
> You'll find these around machine shops.
>
>
> Roger Halstead (K8RI & ARRL life member)
> (N833R, S# CD-2 Worlds oldest Debonair)
> www.rogerhalstead.com

Good morning Roger - problem with a v-block is that you still need to
insure the drill passes thru the center of the bolt; unless you know a
trick, the v-block will get me perpendicular to the shank, but does
nothing for centering the drill-bit (unless you know a secret???) - Mike

Dan[_2_]
January 3rd 07, 03:40 PM
mhorowit wrote:
> Roger wrote:
>> On Tue, 02 Jan 2007 10:10:23 -0500, Michael Horowitz
>> > wrote:
>
>> There is also a V-Block with a series of drill holes that you just lay
>> on the bolt and have at it. This has the advantage, or disadvantage
>> (depending on how you look at it) as to allowing you to drill what
>> ever size hole you want as opposed to what is properly required.
>> You'll find these around machine shops.
>>
>>
>> Roger Halstead (K8RI & ARRL life member)
>> (N833R, S# CD-2 Worlds oldest Debonair)
>> www.rogerhalstead.com
>
> Good morning Roger - problem with a v-block is that you still need to
> insure the drill passes thru the center of the bolt; unless you know a
> trick, the v-block will get me perpendicular to the shank, but does
> nothing for centering the drill-bit (unless you know a secret???) - Mike
>
Place the v-block on the drill press, lower the drill bit until it
bottoms in the V, clamp the v-block down and every single cylindrical
object placed in the v-block will be drilled through the center.

Dan, U.S. Air Force, retired

mhorowit
January 3rd 07, 03:46 PM
Dan wrote:
> mhorowit wrote:
> > Roger wrote:
> >> On Tue, 02 Jan 2007 10:10:23 -0500, Michael Horowitz
> >> > wrote:
>> >
> Place the v-block on the drill press, lower the drill bit until it
> bottoms in the V, clamp the v-block down and every single cylindrical
> object placed in the v-block will be drilled through the center.
>
> Dan, U.S. Air Force, retired

Duh, of course. Thanks - Mike

Dan[_2_]
January 3rd 07, 04:37 PM
mhorowit wrote:
> Dan wrote:
>> mhorowit wrote:
>>> Roger wrote:
>>>> On Tue, 02 Jan 2007 10:10:23 -0500, Michael Horowitz
>>>> > wrote:
>>>>
>> Place the v-block on the drill press, lower the drill bit until it
>> bottoms in the V, clamp the v-block down and every single cylindrical
>> object placed in the v-block will be drilled through the center.
>>
>> Dan, U.S. Air Force, retired
>
> Duh, of course. Thanks - Mike
>

I know the feeling. I have days when I make some rather elaborate set
ups on my vertical mill then have a eureka moment like that :) It's best
not to have a witness around at times like that.

Dan, U.S. Air Force, retired

Roger[_4_]
January 4th 07, 06:57 AM
On 3 Jan 2007 04:39:55 -0800, "mhorowit" > wrote:

>
>Roger wrote:
>> On Tue, 02 Jan 2007 10:10:23 -0500, Michael Horowitz
>> > wrote:
>
>>
>> There is also a V-Block with a series of drill holes that you just lay
>> on the bolt and have at it. This has the advantage, or disadvantage
>> (depending on how you look at it) as to allowing you to drill what
>> ever size hole you want as opposed to what is properly required.
>> You'll find these around machine shops.
>>
>>
>> Roger Halstead (K8RI & ARRL life member)
>> (N833R, S# CD-2 Worlds oldest Debonair)
>> www.rogerhalstead.com
>
>Good morning Roger - problem with a v-block is that you still need to
>insure the drill passes thru the center of the bolt; unless you know a
>trick, the v-block will get me perpendicular to the shank, but does
>nothing for centering the drill-bit (unless you know a secret???) - Mike

Lay the bolt in the "V" with the threads over the desired hole. Clamp
the bolt in place using a block of wood to protect the threads. The
bolt should be centered in the "V" along with the drill hole.
Conversely place the bolt at the proper position in the "V", invert
the whole works and clamp it to a wood block. The crill should be
centered on the bolt and the block will protect what ever you would
have drilled without it...bench tops..etc<:-))


Roger Halstead (K8RI & ARRL life member)
(N833R, S# CD-2 Worlds oldest Debonair)
www.rogerhalstead.com

Roger[_4_]
January 4th 07, 06:58 AM
On Wed, 03 Jan 2007 10:37:55 -0600, Dan > wrote:

>mhorowit wrote:
>> Dan wrote:
>>> mhorowit wrote:
>>>> Roger wrote:
>>>>> On Tue, 02 Jan 2007 10:10:23 -0500, Michael Horowitz
>>>>> > wrote:
>>>>>
>>> Place the v-block on the drill press, lower the drill bit until it
>>> bottoms in the V, clamp the v-block down and every single cylindrical
>>> object placed in the v-block will be drilled through the center.
>>>
>>> Dan, U.S. Air Force, retired
>>
>> Duh, of course. Thanks - Mike
>>
>
> I know the feeling. I have days when I make some rather elaborate set
>ups on my vertical mill then have a eureka moment like that :) It's best
>not to have a witness around at times like that.

Isn't it amazing that those moments always seem to happen AFTER you
have done it the hard way?

>
>Dan, U.S. Air Force, retired
>
>
Roger Halstead (K8RI & ARRL life member)
(N833R, S# CD-2 Worlds oldest Debonair)
www.rogerhalstead.com

Dan[_2_]
January 4th 07, 01:31 PM
Roger wrote:
> On Wed, 03 Jan 2007 10:37:55 -0600, Dan > wrote:
>
>> mhorowit wrote:
>>> Dan wrote:
>>>> mhorowit wrote:
>>>>> Roger wrote:
>>>>>> On Tue, 02 Jan 2007 10:10:23 -0500, Michael Horowitz
>>>>>> > wrote:
>>>>>>
>>>> Place the v-block on the drill press, lower the drill bit until it
>>>> bottoms in the V, clamp the v-block down and every single cylindrical
>>>> object placed in the v-block will be drilled through the center.
>>>>
>>>> Dan, U.S. Air Force, retired
>>> Duh, of course. Thanks - Mike
>>>
>> I know the feeling. I have days when I make some rather elaborate set
>> ups on my vertical mill then have a eureka moment like that :) It's best
>> not to have a witness around at times like that.
>
> Isn't it amazing that those moments always seem to happen AFTER you
> have done it the hard way?
>
>> Dan, U.S. Air Force, retired
>>
>>
> Roger Halstead (K8RI & ARRL life member)
> (N833R, S# CD-2 Worlds oldest Debonair)
> www.rogerhalstead.com

The worst is when you do an elaborate set up to do one piece and
later look in Machinist Bedside Reader and see exactly what you should
have done. It's the little things in life that makes one feel so warm
and fuzzy :)

Dan, U.S. Air Force, retired

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