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How To - Tips => Other / Everything Else => Topic started by: kmb58 on August 02, 2016, 03:15:23 PM
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I searched the net- cant seem to find anything helpful. Surely a hole saw is not going to last too long cutting steel. What is the best way to prep square/rectangle for fitting to round?
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Harbor Freight sells a tool to help you do it and the Bi-metal hole saws.
http://www.harborfreight.com/pipe-tubing-notcher-42324.html (http://www.harborfreight.com/pipe-tubing-notcher-42324.html)
http://www.harborfreight.com/34-in-2-12-in-bi-metal-hole-saw-assorted-set-14-pc-68990.html (http://www.harborfreight.com/34-in-2-12-in-bi-metal-hole-saw-assorted-set-14-pc-68990.html)
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I was just eyeballing the notcher today. I was most curious about the cutting tools. those look "toothed" for wood.. I actually picked up an 18 piece kit for 9.99 with today's coupon..
Harbor Freight sells a tool to help you do it and the Bi-metal hole saws.
[url]http://www.harborfreight.com/pipe-tubing-notcher-42324.html[/url] ([url]http://www.harborfreight.com/pipe-tubing-notcher-42324.html[/url])
[url]http://www.harborfreight.com/34-in-2-12-in-bi-metal-hole-saw-assorted-set-14-pc-68990.html[/url] ([url]http://www.harborfreight.com/34-in-2-12-in-bi-metal-hole-saw-assorted-set-14-pc-68990.html[/url])
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Have a look at this. May come in handy after you get the tools.
http://metalgeek.com/static/cope.pcgi (http://metalgeek.com/static/cope.pcgi)
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Good bi-metal hole saws work very well and will stand up to many uses if you make sure to use a lot of oil and go slowly. I'm not sure about the hole saws from Harbor Freight, but I always use the Lenox brand from Lowe's. I've used these to cut numerous holes in up to 3/8" steel plate and I have yet to replace one. Lots of oil is the key. Good luck.
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Eastwood's tubing notcher:
http://search.eastwood.com/search?w=tubing%20notcher (http://search.eastwood.com/search?w=tubing%20notcher)
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I appreciate all of the feedback guys!
I'll try the $40 harbor freight unit. I don't have too many cuts to make, plus if it needs to be a little more substantial, I can just beef it up. Looking forward to experimenting with this thing.
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These are scraps of .120 wall DOM that were cut on the Harbor Freight notcher. This overly thick stock was for a-arms and it cut just fine.
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Here is the finished product.