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Deburring / Chamfering / Countersinking Holes - DieselDennis - 06-07-2018

What tool does everyone use to knock the edges off of a hole in wood?  

I think for a general knock the corner off kind of clean up, I'd want a sanding cone.  But I'm having trouble identifying the ones I'm looking for.  I recall a rubber cone "tip" with a sandpaper cone that was probably at a true 45 deg angle.

What if you go a little deeper?  Like for a true countersink for a flat head screw?  What type of countersink works best in wood?  I have a little five flute jobber used in metalwork.  It's not bad to knock an edge off if you run it in reverse.  

Hole size could be anything up to say 5/8".


RE: Deburring / Chamfering / Countersinking Holes - Admiral - 06-07-2018

(06-07-2018, 07:43 PM)DieselDennis Wrote: What tool does everyone use to knock the edges off of a hole in wood?  

I think for a general knock the corner off kind of clean up, I'd want a sanding cone.  But I'm having trouble identifying the ones I'm looking for.  I recall a rubber cone "tip" with a sandpaper cone that was probably at a true 45 deg angle.

What if you go a little deeper?  Like for a true countersink for a flat head screw?  What type of countersink works best in wood?  I have a little five flute jobber used in metalwork.  It's not bad to knock an edge off if you run it in reverse.  

Hole size could be anything up to say 5/8".

This:  https://www.lie-nielsen.com/product/accessory-tools-countersink-

Pricey, but it's wonderful.


RE: Deburring / Chamfering / Countersinking Holes - ez-duzit - 06-07-2018

Long ago, from one of the mail order woodworking tool outfits, I bought a special, single fluted countersink for wood. IIRC it is about 1-1/4" dia, with a plain shank for chucking in a drill motor. Creates a perfect edge break with no chattering.


RE: Deburring / Chamfering / Countersinking Holes - wood-chips - 06-08-2018

I like the KEO brand. They are a little pricey, but after you use one you'll see why.
Here's one on Amazon Countersink


RE: Deburring / Chamfering / Countersinking Holes - Hank Knight - 06-08-2018

These are similar to wood-chips' suggestion. They're the best I've found up to 1/2".

http://www.leevalley.com/us/Wood/page.aspx?p=32308&cat=180,42240,45533,42240,45531,42240,45531,42240,45531,42240,45531,42240,45531,42240,45534,42240,45534,42240,42281&ap=1

Anything larger, I use this:

http://www.leevalley.com/us/Wood/page.aspx?p=41012&cat=180,42240,45533,42240,45531,42240,45531,42240,45531,42240,45531,42240,45531,42240,45534,42240,45534,42240,42281&ap=1


RE: Deburring / Chamfering / Countersinking Holes - ez-duzit - 06-08-2018

(06-08-2018, 07:48 AM)Hank Knight Wrote: ...Anything larger, I use this:

http://www.leevalley.com/us/Wood/page.aspx?p=41012&cat=180,42240,45533,42240,45531,42240,45531,42240,45531,42240,45531,42240,45531,42240,45534,42240,45534,42240,42281&ap=1

That is exactly like the one I have.


RE: Deburring / Chamfering / Countersinking Holes - jstraw - 06-08-2018

I use an old brace taper bit in a hand brace. Not much money and I like the control. Much easier to control the depth and consistent between holes, by counting the cranks on the brace.


RE: Deburring / Chamfering / Countersinking Holes - Timberwolf - 06-08-2018

(06-07-2018, 07:43 PM)DieselDennis Wrote: What tool does everyone use to knock the edges off of a hole in wood?  

I think for a general knock the corner off kind of clean up, I'd want a sanding cone.  But I'm having trouble identifying the ones I'm looking for.  I recall a rubber cone "tip" with a sandpaper cone that was probably at a true 45 deg angle.

What if you go a little deeper?  Like for a true countersink for a flat head screw?  What type of countersink works best in wood?  I have a little five flute jobber used in metalwork.  It's not bad to knock an edge off if you run it in reverse.  

Hole size could be anything up to say 5/8".
............
I have a ton of countersinks, but the one I always reach for is the kind with the single hole as the cutting edge...whether its wood or metal, it always gives excellent results......

https://www.amazon.com/Iuhan-Deburring-Countersink-Aluminum-Countersunk/dp/B078NXXBLX/ref=sr_1_11?ie=UTF8&qid=1528474352&sr=8-11&keywords=one+hole+countersink+drill+bit


RE: Deburring / Chamfering / Countersinking Holes - Brian in sunny FL - 06-08-2018

I just got some of these pilotless ones in stock.  If you email me your feedback I send you one at no charge. 

http://www.norsemandrill.com/pdf/prd/norsemanCounterSink2016-1.pdf

Let me know what size, right now I only have the ones referenced by screw size.


RE: Deburring / Chamfering / Countersinking Holes - joe1086 - 06-08-2018

I've had a Weldon set for probably 25 years, similar to This One , except my set of four doesn't have the largest size countersink pictured. Works great on both wood and metal, doesn't chatter and leaves a very smooth edge.