Need a decent chassis punch set

BadassBob · 22nd September 2010, 05:03 PM

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

cjkpkg · 22nd September 2010, 05:37 PM

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.

porkchop61 · 22nd September 2010, 06:35 PM

I thought that looked like the set I saw in Harbor Freight:
Hydraulic Punch Driver Kit

HollowState · 22nd September 2010, 07:00 PM

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 ¾, 1 or 1¼ inch.

Ty_Bower · 22nd September 2010, 07:03 PM

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.

BadassBob · 22nd September 2010, 07:22 PM

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)

cjkpkg · 22nd September 2010, 07:47 PM

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.

Palustris · 22nd September 2010, 09:51 PM

I bought the Greenlee punches on eBay. I just got the 7/8" for $10. Don't hurry be patient.

Wavebourn · 22nd September 2010, 10:08 PM

What about this one? Knockout Punch Kit

aardvarkash10 · 22nd September 2010, 10:52 PM

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...

22nd September 2010, 05:03 PM	#1
BadassBob diyAudio Member Join Date: Sep 2010 Location: North of Detroit, MI	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 __________________ Vortexbox - DIY 6B4G SET - FE207 BR w/ Planet_10 phase plugs

22nd September 2010, 06:35 PM	#3
porkchop61 diyAudio Member Join Date: Aug 2004 Location: Mansfield, Connecticut	I thought that looked like the set I saw in Harbor Freight: Hydraulic Punch Driver Kit __________________ "Imagination is more important than knowledge"

22nd September 2010, 07:00 PM	#4
HollowState diyAudio Member Join Date: Aug 2006 Location: Taxland, New Jersey	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 ¾, 1 or 1¼ inch. __________________ "The supercomputer is technologically impossible. It would take all of the water that flows over Niagara Falls to cool the heat generated by the number of vacuum tubes required." ~ Professor of Electrical Engineering, New York University

22nd September 2010, 07:22 PM	#6
BadassBob diyAudio Member Join Date: Sep 2010 Location: North of Detroit, MI	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) __________________ Vortexbox - DIY 6B4G SET - FE207 BR w/ Planet_10 phase plugs

22nd September 2010, 10:08 PM	#9
Wavebourn diyAudio Member Join Date: Sep 2006 Location: Pleasant Hill, CA	What about this one? Knockout Punch Kit __________________ The devil is not so terrible as his mathematical model! Wavebourn: We Create Creativity!

22nd September 2010, 05:37 PM	#2
cjkpkg diyAudio Member Join Date: Aug 2008 Location: Roswell GA	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.

22nd September 2010, 07:03 PM	#5
Ty_Bower diyAudio Member Join Date: Mar 2007 Location: Newark, DE	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.

22nd September 2010, 07:47 PM	#7
cjkpkg diyAudio Member Join Date: Aug 2008 Location: Roswell GA	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.

22nd September 2010, 09:51 PM	#8
Palustris diyAudio Member Join Date: Aug 2006 Location: Cape Cod	I bought the Greenlee punches on eBay. I just got the 7/8" for $10. Don't hurry be patient.

22nd September 2010, 10:52 PM	#10
aardvarkash10 diyAudio Member Join Date: Mar 2007 Location: Auckland, NZ	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... __________________ Yes, conservatism thrives on low intelligence and poor information. But the liberals in politics... continue to back off, yielding to the supremacy of the stupid. It's turkeys all the way down. - George Monbiot, guardian.co.uk, 6 Feb 2012

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