How To Grind a Drill Bit For Brass?
#1
Tom,

How about a "How To Grind a Drill Bit for Brass" video? Drool

Ed
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#2
(08-30-2013, 04:12 PM)EdK Wrote: Tom,

How about a "How To Grind a Drill Bit for Brass" video? Drool

Ed

It's already on the list Ed. They also work well for plastics.

Tom
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#3
I will second this request Ed , people keep saying things like knock the edge back for drilling brass , but not give any detail of what exactly they mean by it ...................... I am sure all will become clear once Tom gets to work on a video covering the topic Big Grin
Just when ever Tom, no pressure Rotfl

Cheers Mick.
Micktoon, proud to be a member of MetalworkingFun since Sep 2012.
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#4
Would tomorrow be alright Mick, I'm a little busy SLEEPING at the moment. Big Grin

I actually thought of a little demonstration of what a standard drill bit does when you try to drill brass or plastic, so this should be fun.

Tom
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#5
(09-01-2013, 12:33 AM)TomG Wrote: Would tomorrow be alright Mick, I'm a little busy SLEEPING at the moment. Big Grin

I actually thought of a little demonstration of what a standard drill bit does when you try to drill brass or plastic, so this should be fun.

Tom

Tom, I, for one, KNOW what happens when one tries to drill brass or plastic with a nice sharp "standard" drill bit.
Recalling the memories would not be fun for me. Blush
Busy Bee 12-36 lathe, Busy Bee Mill drill, Busy Bee 4x6 bandsaw, Homemade 9x17 bandsaw, Ad infinitum.
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#6
Umm.. I just take a stone to the edge and put a wee bit of a negative rake on it. I guess that's hard to picture. Tom? Where's that video?! :)

Oh hey, another stunt with a stone is to round the outer tips a bit. It's called a poor-boy's reamer. :) :)
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#7
Hi Tom , I like the sound of the demo, I know what will happen Rotfl , hence wanting to find out how to sharpen drills to stop it happening Big Grin ..............looking forward to the video. Thanks agin for taking the time to do them Tom

Cheers Mick
Micktoon, proud to be a member of MetalworkingFun since Sep 2012.
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#8
Here it is as promised. Of course Mick's probably busy sleeping now. Big Grin

Tom



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#9
Hi Tom, I am awake now and watched the video Big Grin , top marks as usual, I was surprised to see the plastic lift out the vice Yikes I think I have been lucky so far after seeing that!
It looks more straight forward to alter the drill bit anyway so I will do some spare drills and keep them for brass.
Thanks again for posting Tom Worthy

Cheers Mick.
Micktoon, proud to be a member of MetalworkingFun since Sep 2012.
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#10
I knew it was dangerous, i didn't know how to solve the problem. I always used more clamps. Thanks for the knowledge! This could not be more simple.
LJP, proud to be a member of MetalworkingFun Forum since Aug 2013.
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