[TheForge] followup on holes in saw blade

[David Childress]

Works well if you are good enough at grinding.

David Childress

On 5/6/10, Ron Childers <munlaw2 at hcsmail.com> wrote:
> Has anyone tried regrinding a masonry bit to use on really hard meta?
>
> -----Original Message-----
> From: theforge-bounces at mailman.qth.net
> [mailto:theforge-bounces at mailman.qth.net] On Behalf Of Peter Fels & Phoebe
> Palmer
> Sent: Thursday, May 06, 2010 1:25 PM
> To: Blacksmithing List Sponsored by ABANA
> Subject: Re: [TheForge] followup on holes in saw blade
>
> Andy;
> Try a cutting lubricant and regrind your drill flutes to
> a less aggressive angle...also drill a pilot hole
> first......speed and feed matter of course.
>
> Andy Gladish wrote:
>> A couple weeks ago I was having trouble drilling holes in some knife
> blanks
>> made from surplus metal-cutting bandsaw blades.
>> What I ended up doing was heating to critical in the gas forge, then
>> blocking the door, turning it off, and letting it cool slowly.
>> Now I can drill them, though I wish the drill didn't chatter and squeal so
>
>> much...
>> Thanks for the help, everybody!
>> Andy G.
>>
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