How to Hand Sharpen a Twist Drill

How to Hand Sharpen a Twist Drill - Printable Version

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RE: How to Hand Sharpen a Twist Drill - EdK - 12-18-2012

How small of a drill bit can you sharpen using this method?

Thanks,
Ed

RE: How to Hand Sharpen a Twist Drill - Mayhem - 12-18-2012

(12-18-2012, 10:07 AM)EdK Wrote: How small of a drill bit can you sharpen using this method?

How good are your eyes? How steady are your hands?

RE: How to Hand Sharpen a Twist Drill - EdK - 12-18-2012

(12-18-2012, 10:17 AM)Mayhem Wrote:
(12-18-2012, 10:07 AM)EdK Wrote: How small of a drill bit can you sharpen using this method?

How good are your eyes? How steady are your hands?

That's what I thought would be the answer. Big Grin

RE: How to Hand Sharpen a Twist Drill - stevec - 12-18-2012

I'd venture that if you sharpen a .500" drill with an 8" grinder you should sharpen a .050" drill with a .800" grinder. No? Chin

RE: How to Hand Sharpen a Twist Drill - TomG - 12-18-2012

Steve: The smaller drill require a fine grit aluminum oxide wheel. The diameter doesn't matter, but you need to be able to dress a razor sharp corner on it. I used to use a cup wheel on an engraving cutter grinder to do the small stuff. When my eyes were younger I could sharpen a .050" drill by eye, but those days are long gone.

Darren: Ask and ye shall receive. This is the actual drill that I sharpened in the video. Not bad, considering that most of it was done by feel. Blink

Tom

RE: How to Hand Sharpen a Twist Drill - sasquatch - 12-18-2012

Thanks for this Tom, great photography!!

RE: How to Hand Sharpen a Twist Drill - stevec - 12-18-2012

(12-18-2012, 01:25 PM)TomG Wrote: Steve: The smaller drill require a fine grit aluminum oxide wheel. The diameter doesn't matter, but you need to be able to dress a razor sharp corner on it.

Thanks Tom, I didn't realize that. Rolleyes

RE: How to Hand Sharpen a Twist Drill - EdK - 12-18-2012

(12-18-2012, 01:25 PM)TomG Wrote: Steve: The smaller drill require a fine grit aluminum oxide wheel. The diameter doesn't matter, but you need to be able to dress a razor sharp corner on it.

Tom

Tom,

You answered both of my questions about sharpening small bits. The grit needs to be finer and the edge of the wheel needs to be sharp.

Thanks!

Ed

RE: How to Hand Sharpen a Twist Drill - DaveH - 12-18-2012

Tom,
A very useful video, nicely done Thumbsup

DaveH

RE: How to Hand Sharpen a Twist Drill - TomG - 12-18-2012

Thanks guys.

Tom