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Re: [Shop-talk] Drill bits: carbon steel vs high-speed

To: "Eugene D Abbondelo" <>, "Doug Braun"
Subject: Re: [Shop-talk] Drill bits: carbon steel vs high-speed
From: "Arvid Jedlicka" <>
Date: Mon, 23 Mar 2009 10:21:25 -0500
I have the older style 750 and love it.

Putting the bit into the holder correctly appeared to be the part that I was 
not doing correctly when I first got my Drill Doctor - the bits were coming 
out duller than they went in. I have come up with this incantation and have 
been very happy:

I put the bit in the holder so it is "almost snug" and then put the 
bit\holder into the "aligner" [I hope all these technical terms are not a 
problem ;-}]. This allows the two spring fingers to align the drill bit 
flutes in the holder correctly. If I leave the bit loose in the holder and 
look into the top of the "aligner" it becomes obvious what the finger 
springs are trying to do to the bit. I may give the bit a little twist to 
help the finger springs do their job. I can also insure that the tip of the 
bit is all the way in and against the stop. Once I have determine that the 
bit, the stop and the springs are happy I tighten the bit in the holder.

Then just put the bit\holder into the "sharpener" and sharpen away. I am not 
positive the "be sure to make an even number of cuts" is critical but (a) it 
made sense to me so (b) I've always done it and (c) have had great success.

I do not use the split point feature that much and will suggest that 25% of 
the time that I have use it I am not sure I am getting the results that I 
though I should, but other than that I am really happy device.


p.s. As a side note, the environment is "a 115 piece standard HHS drill bit 
set from Northern Tool and a 115 piece metric HHS set from Enco" - both of 
which seemed to have come with the pre-dulled option enabled. But with the 
Drill Doctor I have been very please with both sets.

----- Original Message ----- 
From: "Eugene D Abbondelo" <>
To: "Doug Braun" <>; "David Scheidt" <>
Cc: "Shop-Talk List" <>
Sent: Monday, March 23, 2009 9:49 AM
Subject: Re: [Shop-talk] Drill bits: carbon steel vs high-speed

> This post reminded me to ask:
> Concerning drill sharpening--I have a Drill Doctor brand drill sharpener 
> and I
> have never been able to get it to sharpen decently.  Anyone else had this
> problem?  Is there a better brand out there?
> Gene
>>>> David Scheidt <> 3/23/2009 9:40 AM >>>
> On Sun, Mar 22, 2009 at 3:06 PM, Doug Braun <> wrote:
>> Hello,
>> Is there any reason to choose carbon over high-speed if the price is the
> same? B Do carbon steel drill bits have any possible advantage other than
> sometimes being cheaper?
> Carbon steel is a bit easier to sharpen.  Doesn't matter to me: I use
> a powered diamond wheel to sharpen bits.
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