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Old 22nd September 2010, 06:03 PM   #1
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Default Need a decent chassis punch set

Ive looked into the Greenlee punch sets, but theyre too rich for my blood. Id prefer a hand punch type set, to be used to punch holes for tube sockets and other amplifier hardware. Whats out there that I can get for ~$200 or so? What i have in mind is something like this: http://www.amazon.com/gp/product/B00...=ASMMG6Z68CKOY
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Old 22nd September 2010, 06:37 PM   #2
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I found a 7235BB Greenlee set on ebay for $55 free shipping...It took a little while to find but if you're not in a hurry I bet you could find a good deal on there.
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Old 22nd September 2010, 07:35 PM   #3
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I thought that looked like the set I saw in Harbor Freight:
Hydraulic Punch Driver Kit
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Old 22nd September 2010, 08:00 PM   #4
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You don't need or want an off brand hydraulic punch set. Stick with Greenlee brand. There are lots of them on eBay right now. A conduit punch set will give you usable holes, although they will be slightly over size because they're meant for EMT connectors. This is apposed to standard sizes like , 1 or 1 inch.
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Old 22nd September 2010, 08:03 PM   #5
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That Harbor Fright hydraulic punch set is neat, but I still have reservations. I bought their manual knockout punch kit. Technically, it works. The punches aren't very hard, so they seem to dull quickly. They aren't very sharp in the first place, so the holes they make are shaped more like a Pringle than a circle. None of the sizes included in the set are quite right for tube sockets - it was designed for conduits.

Considering the low cost, I'll get over these minor issues. I'll probably even use it again on another project. However, if I paid $100 for the hydraulic set and it worked no better than the manual set, I think I would find myself wishing I had just bought a real set of Greenlees.
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Old 22nd September 2010, 08:22 PM   #6
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This appears to be the one cjkpkg was talking about. Would this punch set cover most of what Id need to punch a top plate?

NEW GREENLEE 7235BB SLUGBUSTER PUNCH SET 1/2" ? 1 1/4" - eBay (item 270630888865 end time Oct-04-10 07:04:48 PDT)
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Old 22nd September 2010, 08:47 PM   #7
cjkpkg is offline cjkpkg  United States
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0.89", 1.12", 1.36", and 1.70" actual hole sizes.

The 0.89" works perfect for a 9-pin chassis mount socket. The 1.12" will work perfectly for an octal socket - working on a project right now. The 1.36" worked perfectly where I needed some additional clearance for a PCB mounted octal where I wanted there to be enough clearance for the socket due to standoff length and height of the chassis.
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Old 22nd September 2010, 10:51 PM   #8
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I bought the Greenlee punches on eBay. I just got the 7/8" for $10. Don't hurry be patient.
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Old 22nd September 2010, 11:08 PM   #9
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What about this one? Knockout Punch Kit
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Old 22nd September 2010, 11:52 PM   #10
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how often are you going to use them?

Unles you either use them regularly OR are just into having nice gear (guilty) the economically literate thing to do is mark out your chassis, then take it along to a tame engineering or sheetmetal place to do the punching for you...
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