[Boatanchors] Chassis Mechanical Question

[Kenneth Grimm]

Hole saws are OK for thin metal, provided, as Garey said, you have a drill
press.  For cutting perfect sized holes in a 1/4 in aluminum front panel
for 4 1/2 in Simpson Wide Vue meters in my home brew amp, nothing worked as
easily as a fly cutter in a drill press.  For most jobs in thin aluminum,
pvc, and other materials, I use the stepped drills from Harbor Freight.
http://www.harborfreight.com/catalogsearch/result?q=stepped+drill+bits

73,


On Fri, Feb 14, 2014 at 1:24 PM, Garey Barrell <k4oah at mindspring.com> wrote:

> Jim -
>
> Those work fine, IF you have a drill press.  They are iffy at best with a
> hand drill, and useless if you don't have either one!  :-)
>
> I cut many a hole with the reamer and a Crescent wrench on the tang.  Far
> from ideal, but 'within budget'......
>
>
> 73, Garey - K4OAH
> Glen Allen, VA
>
> Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line
> and TR-4/C Service Supplement CDs
> <www.k4oah.com>
>
> Jim Wilhite wrote:
>
>> Harbor Freight sells a set of two step drills for much less, on the order
>> of 18 bucks.  They are sized from 1/16 to 1 3/8, including the necessary 1
>> 1/4 step.  I think one could purchase a number of them for the price of the
>> plumber's reamer. I have used them with cutting oil and running them slow
>> with good success, including enlarging a 7 pin tube socket hole to a 9 pin
>> size.
>>
>>
>>
>> Jim W5JO
>>
>>
>>
>>
>> YIKES!!!!!
>>
>> I just did a search for a reamer, and one like the one I've had for 40
>> years is $275!   I know I didn't spend over $5
>> for it.  I KNOW there's been some inflation, but YIKES!!   Guess I should
>> take better care of it.....
>>
>>
>>
>> Chuck McGregor wrote:
>>
>>> You can get a plumber's reamer that chucks in a carpenter's brace.  That
>>> was what I used for chassis holes for the first 30 years of my radio
>>> hobbies.
>>>
>>
>>
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-- 
Ken - K4XL
BoatAnchor Manual Archive
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