Author Topic: Drilling question  (Read 1628 times)

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Offline pete28

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Drilling question
« on: December 07, 2016, 10:51:50 AM »
Hey folks just a quick question.  I got a couple of old bandsaw blades last week and profiled a few blanks. My question is I am having a heck of a time drilling holes for the pins. I simply can't afford the carbide bits.  I've broken at least 6 bits.  I have tried slow with and without oil and still no dice. I thought about heating the metal and drilling while hot but don't feel comfortable doing so. What methods might I be able to try?
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Offline wolfy

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Re: Drilling question
« Reply #1 on: December 07, 2016, 11:53:54 AM »
I have never tried to bore a hole in bandsaw blade material before, but I have successfully punched a hole through a power hacksaw blade......which I assume is at least as tough as the bandsaw blade.  I just used a simple carbide, spade-ended masonry bit and it seemed to work pretty well.  If you can start it in a divot from a good whack with a sharp punch, it will help with the bit wanting to wander.  You can sharpen the masonry bit on a grinder for better results.  It ain't a perfect bit, but it'll get you by for a few holes and they're cheap. :thumbsup:

Good luck! :cheers:
The only chance you got at a education is listenin' to me talk!
Augustus McCrae.....Texas Ranger      Lonesome Dove, TX

Offline MnSportsman

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Re: Drilling question
« Reply #2 on: December 07, 2016, 12:24:16 PM »
Along the lines of Wolfys post:


http://www.ibuildit.ca/Workshop%20Projects/Shop%20Tricks/tricks-56.html


Sounds like it may work for ya...


G'Luck!


  I have been told that ceramic tile bits can cut through files before. I picked up a cheap set of 4 ( about $8-10) from a local store called Menards, but have not yet got around to trying them yet.
https://www.menards.com/main/tools-hardware/power-tools-accessories/power-tool-accessories/drill-bits-sets-accessories/new-england-carbide-4-piece-single-tip-glass-and-tile-drill-set/p-1444445243087.htm


Maybe they are inexpensive enough to try to buy at a local Lowes/Home Depot/hardware store? Or, you could order online from Menards too if ya like.


Like I said, "G'Luck!".
:)
I love being out in the woods!   I like this quote from Mors Kochanski - "The more you know, the less you carry". I believe in the same creed, & think  "Knowledge & honed skills" are the best things to carry with ya when you're out in the wilds. They're the ultimate "ultralight" gear! ;)

Offline pete28

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Re: Drilling question
« Reply #3 on: December 07, 2016, 02:18:56 PM »
Thanks guys I'll definitely try the masonry bits and see what we come up with.  I'm also gonna try a sharp point
The more you look with your eyes the less you will truly see.

Offline wolfy

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Re: Drilling question
« Reply #4 on: December 07, 2016, 02:28:20 PM »
Neat website, JB! :thumbsup:

BTW......I haven't forgotten about the books, but Bill wanted to read the Ernie Pyle book before I gave it away......so, it's in Yuma at the moment. :-[
The only chance you got at a education is listenin' to me talk!
Augustus McCrae.....Texas Ranger      Lonesome Dove, TX

Offline crashdive123

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Re: Drilling question
« Reply #5 on: December 07, 2016, 02:44:43 PM »
Pete, if that doesn't work for you, this might.


Offline PetrifiedWood

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Re: Drilling question
« Reply #6 on: December 07, 2016, 04:02:38 PM »
Crashdive has it right. You can spot anneal where you want to drill.

Offline wolfy

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Re: Drilling question
« Reply #7 on: December 07, 2016, 04:19:47 PM »
If you intend to 'spot anneal,' be sure to use heat control paste on the blade, jam the blade into a raw potato or clamp the blade in the vise jaws inside a folded copper, brass or lead sheet to act as a heat sink and protect the blade temper & finish. :P
The only chance you got at a education is listenin' to me talk!
Augustus McCrae.....Texas Ranger      Lonesome Dove, TX

Offline upthecreek

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Re: Drilling question
« Reply #8 on: December 07, 2016, 07:09:00 PM »
I'd jab it in a raw tater if it was me. Clean the blade first so you can eat the tater when you're done.

Creek
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Offline crashdive123

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Re: Drilling question
« Reply #9 on: December 08, 2016, 03:33:12 AM »
Another option is for you to give me a call and stop by the house.  I have carbide bits.

Offline pete28

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Re: Drilling question
« Reply #10 on: December 08, 2016, 05:32:51 AM »
Great ideas and thoughts guys much appreciated.  Dave I love the idea and greatly appreciate the offer.  I may have to take a field trip to your place after the holidays!
The more you look with your eyes the less you will truly see.

Offline wsdstan

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Re: Drilling question
« Reply #11 on: December 08, 2016, 09:03:07 AM »
I'd jab it in a raw tater if it was me. Clean the blade first so you can eat the tater when you're done.

Creek

I love conservation efforts when it comes to taters.  Great idea.
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Offline hayshaker

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Re: Drilling question
« Reply #12 on: December 12, 2016, 05:51:35 AM »
jantz catalog the jobber lenght bits work well
the also carry135 degree split point bits as well
prices are fair too. i used one a 3/16th bit
it chewed through a old crosscut saw blade
like nothing.

Offline Sundance Creek

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Re: Drilling question
« Reply #13 on: November 18, 2018, 05:33:46 AM »
gonna hafta try this

drilling is my biggest challenge

I 'sharpen' the bit several times during drilling(I am not so good at sharpening)