[Amps] Chassis construction question 2

[Will Matney]

Jim,

I forgot to add, if you have punches that you run in by hand, a good investment is using a thrust bearing. If the bolt is too short for one, try using a bronze washer with oil, or buy a longer grade 8 bolt and use either a ball or roller thrust bearing. You can buy thrust bearings cheap at local power transmission/bearing distributors. You would think they are expensive, but even Timken roller thrust bearings are not that bad. INA makes them too (ball bearing type), and are cheap where they're an Asian import. The distributors can help you here, just ask them for the cheapest one they have. The smaller punches use a 3/8" fine thread, and I think the others are 5/8" F.T. and 3/4" F.T.

What I can't see is the price they want for square and rectangular punches! They are rediculous in price!!!

Best,

Will

*********** REPLY SEPARATOR  ***********

On 8/3/05 at 6:19 PM k7rdx wrote:

>Will, how do you not gall the threads on the Greenlee punches when using
>an
>impact to force feed them?Jim...
>----- Original Message ----- 
>From: "Will Matney" <craxd1 at verizon.net>
>To: <amps at contesting.com>
>Sent: Wednesday, August 03, 2005 5:28 PM
>Subject: Re: [Amps] Chassis construction question
>
>
>> Carl,
>>
>> I use the Greenlee chassis punches now. They have the "Slugbuster" brand
>that splits the slug in half for easy removal. They are good. I'd like to
>have their hydraulic driver but it's a little too expensive for my blood.
>That's when I turn to an impact wrench : ) I think Mouser Electronics
>carries them now.
>>
>> Best,
>>
>> Will
>>
>> *********** REPLY SEPARATOR  ***********
>>
>> On 8/3/05 at 8:29 PM carl seyersdahl wrote:
>>
>> >Ever heard of Greenlee punches ?? They are a little expensive today but
>> >worth every cent.!!  I don't have any of them anymore, but clear back in
>> >the
>> >50's they were very popular.!!
>> >   Just another thought from "way back when".!!!!
>> >   carl / kz5ca
>> >----- Original Message ----- 
>> >From: <JCoupejr at aol.com>
>> >To: <amps at contesting.com>
>> >Sent: Tuesday, August 02, 2005 1:12 AM
>> >Subject: Re: [Amps] Chassis construction question
>> >
>> >
>> >> Gary,
>> >>
>> >> Keep your eyes open for a set of cutters called Rotabroach. My set
>goes
>> >up
>> >> to 7/8" if my memory serves me correctly, but I believe you can get
>> >larger
>> >> sizes. I got my set from Snap On, who may still carry them.
>> >>
>> >> The Rotabroach is essentially a hole saw that cuts a hole using a
>> >donut-like
>> >> broach operation. It leaves a very clean hole every time. I  learned
>> >about
>> >> the Rotabroach from helicopter mechanics who suggested I use them 
>when
>> >drilling
>> >> panels for avionics. I use my 3/4 broach for drilling holes for  NMO
>> >mounts
>> >> in cars/trucks.
>> >>
>> >> I have had my set now for over 15 years. They do not break or wear
>out.
>> >>
>> >> Take a look at the manufacturer's website:
>> >> _http://www.hougen.com/cutters/cutters_index.html_
>> >(http://www.hougen.com/cutters/cutters_index.html)
>> >>
>> >>
>> >> Hope this helps...
>> >>
>> >>
>> >> John Coupe
>> >> Coupe Communications, Inc.
>> >> WA3BXH
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>> >
>> >
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