Tractor Talk Discussion Board |
Re: Help A Dummy?
[ Expand ] [ View Replies ] [ Add a Reply ] [ Return to Forum ]
Posted by Gerald J. on April 12, 2007 at 16:18:29 from (67.0.103.249):
In Reply to: Help A Dummy? posted by Allan In NE on April 12, 2007 at 13:50:45:
Get yourself a 21/32" drill with a 1/2" shank and ground with a 135 degree split point. It won't walk from the punch mark and it drills as fast as the pilot drill so you don't have to drill 3/16", 5/16" 7/16" to get up to size. I bought one last year from McMaster-Carr and drilled 40 holes in 1/2" steel plate making wheel adapter plates and then drilled another 8 or ten holes in 3/4 steel when it needed a bit of touch up on the grinder and finished off 8 more holes in 3/4" steel. The one I bought (made in St. Paul) came with three flatts on the 1/2" shank so it won't slip in the drill chuck. I did use pipe thread cutting oil and a fairly slow speed on these holes. 1/32" over is pretty much industry standard, unless you bolt the pieces together with the first hole and then drill all the rest of the holes in both pieces while clamped together. Then any slight burs on the bolts or the holes will make the bolts reluctant to go in the hole. Chewing up threads with a tight hole doen't make bolts go into nuts well. If you have to measure from existing holes to make new holes, 1/16" at 5/8" diameter may not be enough. Then you use the drill or a large file to slide a hole over a little. Gerald J.
Replies:
Home
| Forums
Today's Featured Article -
Third Brush Generators - by Chris Pratt. While I love straightening sheet metal, cleaning, and painting old tractors, I use every excuse to avoid working on the on the electrics. I find the whole process sheer mystery. I have picked up and attempted to read every auto and farm electrics book with no improvement in the situation. They all seem to start with a chapter entitled "Theory of Electricity". After a few paragraphs I usually close the book and go back to banging out dents. A good friend and I were recently discussing our tractor electrical systems when he stated "I figure it all comes back to applying Ohms Law". At this point
... [Read Article]
Latest Ad:
John Deere B 1943
[More Ads]
Copyright © 1997-2024 Yesterday's Tractor Co. All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V. Yesterday's Tractors - Antique Tractor HeadquartersWebsite Accessibility Policy |
|