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Drill guides for reamers

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reinkings(at)comcast.net
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Posted: Mon Apr 28, 2008 10:52 am Post subject: Drill guides for reamers

Can any of you recommend a source for drill guides for use when reaming 

a hole to such close tolerances?    I'm thinking that without some kind 

of guide that reaming a perfectly aligned hole would be next to impossible.



The Boeing Surplus Store over here at Kent, WA (just recently closed by 

Boeing) used to have literally thousands of these guides available for 

very modest cost.    Unfortunately at that time I wasn't thinking about 

guides for reamers.



Thank you,  John Reinking

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RWILBERS(at)tampabay.rr.c
Guest

Posted: Mon Apr 28, 2008 11:16 am Post subject: Drill guides for reamers

John:

Google drill and reamer bushings. You will get zillions of repl;ies. 

Actually, you need the bushing for the drill more than a reamer. Reamers 

have multiple flutes with each flute having a 45 degree chamfer on it's 

corners and will pretty well self center. Reamers will follow the drilled 

hole so the location, axial and radial runout will tell the reamer where to 

go. There is a tool made by Dixie Carbide that is (or was) called a 

bore/reamer. this tool follows the spindle accuracy and bushing accuracy 

rather than the drilled holke accuracy.



Good luck....................................................Dick

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browntool(at)aol.com
Guest

Posted: Mon Apr 28, 2008 2:34 pm Post subject: Drill guides for reamers

John,

 

 I am not exactly sure of your application, but we stock and sell a wide variety of drill guides, drill bushings, and bushing holders designed to aid in keeping drilled holes straight.  You can see some of our bushing tools at the following link:

 

 http://browntool.com/category.asp?ParentCode=K23&HeaderURL=&FooterURL=&CategoryTitle=MISC%2E+TOOLS+%234+%28Bushings%2C+Carbide+Burrs%2C+Boelube%2C+Hole+Saws+%26More%29

 

 and also:

 

 http://browntool.com/category.asp?ParentCode=K368&HeaderURL=&FooterURL=&CategoryTitle=SPECIALS+%26+MORE+NEW+PRODUCTS

 

   Also, our new catalog is out and free for the asking, simply visit our website at www.browntool.com and click on the "mailing list signup" link at the bottom of the page and we will get a copy out to you immediately free of charge. 

 

 Feel free to contact me directly with any questions at michael(at)browntool.com

 

 Best regards,

 

 Michael Brown

 Brown Aviation Tool Supply Co.

 2536 S.E. 15th Street

 Oklahoma City, OK 73129

 405-688-6888

 800-587-3883

 

 

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Ron Lendon

Joined: 10 Jan 2006
Posts: 685
Location: Clinton Twp., MI

Posted: Mon Apr 28, 2008 6:54 pm Post subject: Re: Drill guides for reamers

I improvised a solution with a vee-block when I reamed my spar attach points.  It was to big to move once the dihedral  was set, so I just did it in place.  It gives you a good visual to start and follow.  It was actually two hands, (picture was pre-tripod), one holding the drill/reamer and one holding the vee-block.  Use lots of tap-magic to keep it wet while reaming.



Here is a link:

http://mykitlog.com/users/display_log.php?user=rlendon&project=113&category=1683&log=24457&row=193

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_________________
Ron Lendon
WW Corvair with Roy's Garage 5th bearing
CH 601 XLB
N601LT - Flying
http://www.mykitlog.com/rlendon
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psm(at)ATT.NET
Guest

Posted: Wed Apr 30, 2008 3:47 pm Post subject: Drill guides for reamers

Hi John,



I found reaming the wing holes very easy without any guide.  I used a 

had reamer and drilled the holes about .020" small.  Then I reamed 

the holes.  All of this was done with the spar assembly all put 

together so the holes were automatically aligned - they were drilled 

and reamed together simultaneously.



I ordered my reamers from MSC and got the right hand reamer with left 

hand twist.



Have fun,



Paul

XL fuselage



At 11:49 AM 4/28/2008, you wrote:



 	  Quote: 	
		  Can any of you recommend a source for drill guides for use when 

reaming a hole to such close tolerances?    I'm thinking that 

without some kind of guide that reaming a perfectly aligned hole 

would be next to impossible.

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notsew_evets(at)frontiern
Guest

Posted: Wed Apr 30, 2008 4:49 pm Post subject: Drill guides for reamers

I ordered a "step reamer"  from Brown Tool.

Look on the web and email  Michael Brown...

He is an A&P turned tool company expert who knows.....



Steve Weston

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