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post #1 of 6 (permalink) Old 02-27-2015, 09:20 AM Thread Starter
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I would like to know if anyone could tell me the thread size on the end of a dremel rotary tool. I am speaking of the thread exposed after removing the cap at the end of the body. I want to make threads into a poly cutting board to attach the dremel.
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post #2 of 6 (permalink) Old 02-27-2015, 10:09 AM
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Gary, after doing a Google search, it's 3/4-12. I have one, and the tools to check myself, but thought it would be quicker to just Google that info. And unfortunately, the nominal size (sizes you will find at hardware stores) are 3/4-10 National Course or 3/4-16 National fine. So you will more and likely have to have a machine shop make you one that is 3/4-12. Not hard to do. Probably cost the minimum a shop charges in your area. I could probably have one made for around 50 bucks, here. If I had a lathe, I could even make one myself. ;o)
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post #3 of 6 (permalink) Old 02-27-2015, 11:57 AM
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If Wikipedia is to be believed, the 3/4" size of British Standard Fine (BSF) thread is 12TPI. Apparently BSF thread taps are still available. Whether the thread form is sufficiently similar is another question of course.
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post #4 of 6 (permalink) Old 02-27-2015, 11:26 PM
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Another possibility and probably one that I would use in the absence of a suitable tap would be to rout a hole in the panel, square, round, it doesn't matter, also a rebate, similar to fitting a router table plate. Into the hole fit a metal plate, steel, brass, aluminium, whatever, and hold the the plate in the rebate with a small countersunk screw in each corner. The plate will have a 3/4" clearance hole and the Dremel poked through the hole and held in place with the housing cap. Problem solved!

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post #5 of 6 (permalink) Old 02-28-2015, 07:40 AM
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This Shop Dremel Rotary Cutting Kit at Lowes.com would give you a threaded collar that you might be able to use.

Do as you always do,,, Get what you always get
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post #6 of 6 (permalink) Old 02-28-2015, 07:49 AM Thread Starter
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Thanks everyone!
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