[AT] Drill bits

[Dick Day]

John, you must be physic  :) I was just going to ask what bits to buy. 
Whether or not I go with a sharpener or not, I must replace most of my bits.

Great advice below, I will start shopping.

Thanks

Dick

--------------------------------------------------
From: <jtchall at nc.rr.com>
Sent: Monday, October 14, 2013 9:06 PM
To: "Antique tractor email discussion group" <at at lists.antique-tractor.com>
Subject: Re: [AT] Drill bits

> Never used a Drill Dr but have heard good comments. Speaking as a 
> machinist,
> buy decent quality drill bits to begin with. China and India have yet to
> make a real cutting tool of any sort. Stores like Sears and the big box 
> home
> improvement stores normally rip you off on drill bits, at least they were
> overpriced the last time I checked one of them.  The best place to buy
> drills is from somewhere like MSC, Travers, or Enco. The "made in USA" 
> bits
> those places carry should be fine or you can step up a bit and buy 
> something
> made by Cleveland, PTD, or Nachi. Most drills homeowners have are jobber
> length, 118 deg. point. Black Oxide or Bright finish should be fine, 
> unless
> you really want to spend the money on a set of coated drills. Sharpen the
> bit before you burn it up, in other words as soon as it begins to dull. If
> the drill is really dull, consider first sharpening it on your pedestal
> grinder, then put it in your Drill Dr.--you'll save a lot of wear on the
> grinding wheel in the drill sharpener--at least that is my policy for 
> using
> the drill grinder at work (it's a large floor model).
>
> Regarding sharpening by hand, go ahead and try. Use a new drill bit as an
> example and grind the dull one until it looks like the new one. For what 
> it
> is worth, most people can't sharpen a bit by hand, and of those that can,
> most of them don't do it properly. It takes a lot of practice to develop
> this skill. Outside of a manufacturing environment, you're probably only
> interested in drilling clearance holes for bolts anyway.
>
> John Hall
>
> -----Original Message----- 
> From: Dick Day
> Sent: Sunday, October 13, 2013 11:07 PM
> To: atis
> Subject: [AT] Drill bits
>
> I guarantee that everyone on this list knows way more than I do about 
> tools.
> I assume that, like most things, you get what you pay for.  Years ago, I
> bought what I thought was a very good (expensive, at least for this 
> wallet)
> set of drill bits, that went from just thicker than a hair to 1/2"  They
> performed well but over the years they have pretty much worn out, and I 
> hate
> to admit it, I broke a few and lost one.  When drilling any type of metal, 
> I
> always have a can of 3-in-1 Oil with me and use it liberally.
>
> Does anyone use a Drill Doctor (or similar piece of equipment) to lengthen
> the life of your bits?  It looks like they range in cost from $50 to $250.
> Before I invest in a new set of bits, any thoughts on renewing verses
> replacing?
>
> Thanks
>
> Dick
>
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