[AT] Drill bits for drilling our old tractor steel and iron.

[Stephen Offiler]

I get a lot from MSC, and my favorite drill bit for the CNC's is Guhring
parabolic-flute (German - as John Hall pointed out, Made in USA isn't
necessarily what you look for in cutting tools).  I recently tooled up a
new-to-me Tsugami swiss lathe and wanted to use some specialty tooling from
Genswiss.  They steered me to one of their distributors, BlackHawk
Industrial, and I'm very happy with them.  They have an outside sales force
that will be at my door within about a day for product selection support.
 More of my business is going to BlackHawk these days as a result.

SO


On Fri, Oct 25, 2019 at 4:22 PM <rbrooks at hvc.rr.com> wrote:

> John
>
>
>
> I am the manufacturing manager at a security integrator.  Prior to my
> joining the company most of the drill bits and taps were picked up at
> either Lowes or Home Depot.  Close , convenient and local.  I started
> buying all the drills and taps from MSC or Fastenal, they last a lot longer
> and there is not a huge difference in price.  Fastenal being the more
> expensive but again local, close and we had an account.  We buy an awful
> lot of stainless hardware from them.
>
>
>
> Bob
>
>
>
> *From:* AT <at-bounces at lists.antique-tractor.com> *On Behalf Of *John Hall
> *Sent:* Friday, October 25, 2019 2:34 PM
> *To:* at at lists.antique-tractor.com
> *Subject:* Re: [AT] Drill bits for drilling our old tractor steel and
> iron.
>
>
>
>
> I've been buying all our tooling at work for the last 25 years (I'm in a
> job shop style machine shop with 20 people).
> For drills 1/2" and under we run cobalt--whether its in a hand drill,
> manual machine, or in our CNC machines. The ones I am stocking now are made
> by Nachi. I have also used PTD, Greenfield, whatever name brand you can
> find. I suggest anyone needing drills for the home shop to look at a basic
> set of jobber length drills from MSC (look them up on line). Their Made in
> USA grade should be sufficient--the last time I suggested this one of you
> guys arrogantly suggested of course they would be. Most tooling is NOT
> produced in the US, don't know why some of you think that only American
> made cutting tools are the way to go. Having said that, I stay away from no
> name imports---its junk. Also, you don't need any special coatings for your
> home grade drill bits. Bright finish or black oxide is fine. Regarding
> resharpening, its not cost effective on small tools in a paid environment.
> We toss anything that's under 5/16", gets broke, burnt up, or has a damaged
> shank. Larger drills we sharpen in house usually--on a floor model drill
> sharpener. Over 1 5/16 we sharpen by hand.
>
> If you rarely use them, Lowes, Home Depot, Harbor Freight may have
> something decent, but its a gamble for sure.
>
> John Hall
>
> On 10/25/2019 3:06 AM, deanvp at att.net wrote:
>
> The closest drill bits I have that I would call decent are a set of
> reverse direction drill bits made by Irwin that are Cobalt.  I’ve used them
> for removing broken off bolts, etc. but even those are not worth writing
> home about.  On grade 5 bolts they are ok but on really hard stuff they
> don’t cut the mustard. Cobalt drill bits do have a negative and that is
> they are very brittle. But…  what brand and version of drill bits have you
> guys found that are better than the average bear and work good on our old
> iron which seems harder than the current stuff. I’m fed up with my multiple
> indexes of drill bits that might work in wood if I was patient. On steel a
> nail might work better. :-) I know its going to cost and I’m prepared for
> that. What is the “Snap-On” of drill bits?  What have you had a long and
> successful relationship with.  However, I am convinced that no matter how
> good they are I will break anything less than 1/8”  So a set from 1/8 to ½”
> in 1/64th “  increments is about my style. Or as an alternative. What
> drill bit sharpener do you recommend? I do have a lot of drill bits that
> could be sharpened. Not sure some of them are worth it though.
>
>
>
> Dean VP
>
> Snohomish, WA 98290
>
>
>
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