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Old 10-14-2016, 12:03 PM   #21
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Join Date: Mar 2008
Location: Concord, NC
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Originally Posted by AquaMan View Post
All the ones I've seen and used (family is in concrete business and I'm in tool & die) have carbide inserts, but won't cut through a piece of pine. They're made for hammerdrills.
Well, I've enlarged holes in leaf springs on a drill press using masonry bits and coolant. Can even sharpen the inserts. He's not going into production, just one hole.

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Old 10-17-2016, 06:50 AM   #22
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Join Date: Oct 2016
Posts: 6
Well I'm in the same boat as you, With the new kit I was able to replace the top gear but the bottom gear needed a bigger opening.. Fortunately my bottom gear was ok so the jacks worked for the weekend camping trip.. I'll use them like this and when they start wearing again, i'll look for new jacks!

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Old 10-17-2016, 07:07 AM   #23
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Join Date: Jul 2010
Location: Waynesville
Posts: 10,611
If the "Bore" of the gear needs to be larger the proper way is with a Lathe! What is the Bore size now and what size is needed? Youroo!!
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Old 10-17-2016, 07:10 AM   #24
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Location: vancouver,washington
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Send a message via Yahoo to bob caldwell
Or the Redneck way....drill bit!

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