Subscribe | Give a Gift | Subscription Customer Service
How We Are Different Order Back Issues Interactive Glossary Weblog Contact the Staff Subscribe to Woodworking Magazine

Woodworking Magazine Weblog

Posted 3/14/2007 in All Weblog Posts | Boring



Though my 12-volt cordless drill is always close at hand, I keep my brace and bit just as close. My brace and my augers allow me to drill deep holes in stout stock that my cordless drill struggles with. The brace also gives me more precision when boring to a certain depth because it's easy to take things slow.

Plus – and I know I'm going to take some grief for this statement – I think it's about the same amount of work to bore a ¾" hole with a brace as it is with a cordless drill. Sometimes we forget that electric drills require a fair amount of strength to control when drilling sizable holes.

The only real trick to using a brace and bit is to learn to sharpen the augers (it's easier than filing your fingernails) and to get a decent used brace. Please don't buy a new one. I have yet to find a new brace that is anything more than a shadow of the vintage ones.

I've used a lot of braces in my lifetime – it was the only tool my father and I had for boring bolt holes in joists when we were building our houses on our farm. And I have a few favorite brands that have good chucks and a smooth ratcheting action. Here's the best news: The very best braces ever made can still be found for about $10 at flea markets, tool swaps and (if you shop with care) on eBay.

By far, my favorite brace is the North Bros. Yankee 2101A brace. It is the Mercedes of the brace world. I first got my hands on one at my grandfather's house. He worked for Western Electric and the Yankee 2101A was standard equipment for Western Electric/Bell System employees who installed phone equipment. He had one that he used around the house and in his woodshop. That first brace spoiled me.

What's so good about it? Lots. The alligator-style chuck jaws close tightly and quickly on square-shanked auger bits or round-shanked twist bits. The ratcheting chuck runs like a top. The ratcheting chuck is a nice feature on high-end braces. The ratcheting allows you to work up against walls and to use your arms in tight spaces or more efficiently (some motions with a brace are more tiring than others). You can run the ratcheting either in forward or reverse, just like on a ratcheting wrench.

Most ratcheting braces have a fairly coarse ratcheting action. Each click shakes the tool. The North Bros. brace, however, is as smooth as silk and is quiet, like the ticking of a fine mechanical wristwatch.

All the knurling on all the parts is quite fine. The pad at the top fits tightly and rotates smoothly. I even like the handles, which are some sort of rubber or composite. They are very durable and comfortable. I've bought about a dozen of these in the last five years, usually for $10 to $20. They're fairly common in the used market. (Just look out for the ones marked "Stanley." After Stanley took over North Bros., a Philadelphia company, the quality declined.)

I've fixed up all of the braces (they didn't need much, usually just a cleaning) and have sent them out to other woodworkers or tool aficionados as gifts. I have other brands that I really like as well, including Peck, Stow and Wilcox. If you want to read more about braces and the manufacturers, I recommend Sanford Moss's excellent site: SYDNAS SLOOT. Sanford also sells a lot of braces, so if you're looking for one, he's a good man to know.

About the Augers
Once you get a good brace, you need to sharpen the auger. It's simple work with an auger bit file. An auger bit file is a file with two arrow-shaped ends. On one end the faces of the tool have file teeth, but the edges are toothless. On the other end of the tool, the edges have teeth but the faces do not. These sections without teeth are called "safe edges" and allow you to file in localized areas. You can get auger bit files from a wide variety of sources for less than $10.

When you sharpen an auger (or any tool), the less you sharpen it, the better. If you file aggressively you'll only ruin the cutting geometry of the auger and it won't cut butter. There are two places you need to file: the cutting lip and the inside of the spurs. Anyplace else that you file will probably make things worse.

First work the cutting lip. The lip levers out the waste and pushes it up the flutes. Put the auger point down against some scrap and gently file the lip. Mimic the existing edge geometry; secondary bevels won't help you here. I'll take four strokes or so until the lip gets shiny. Then I stop.

The spurs score the rim of the hole and allow the cutting lip to lever the waste up cleanly. File only the inside of the curves. The filing motion is more complex because the spur is vaguely football-shaped. As a result, I like to clamp the auger upright in a vise. Again, mimic the existing edge geometry and gently file the entire surface of the interior of the spur.

Don't file the outside of the spur. Bad things can happen.

If the lead screw of the auger bit gets clogged you can clean it out with dental floss. Other than that, there's not much to maintaining your auger bits.

Once you've sharpened up your first auger, try making a hole with your brace in some scrap. A sharp auger will beaver through wood at a remarkable rate. And then I think you'll be hooked.

— Christopher Schwarz


3/14/2007 9:31:40 PM (Eastern Daylight Time, UTC-04:00)
Well, christopher, now you've gone and done it. I'll have to pull out the brace and bits that I've had sitting in my shop for two years. Actually, I've been waiting for a good reason to try them out. I bought them and never used them. ;-)

The brace is a pretty nice millers falls brace & the augers are a full set of irwins.

Check 'em out here: http://picasaweb.google.com/ydb1md/Braces
3/14/2007 9:37:25 PM (Eastern Daylight Time, UTC-04:00)

Dave,

Nice augers! And nice photos as well.

One other detail I neglected to mention that's great about the augers: Because of their length, you can drill against a guide block easily with them. Makes for accurate boring. Which beats boring accuracy.

Chris
3/15/2007 11:57:19 AM (Eastern Daylight Time, UTC-04:00)
Chris, I've heard differing opinions about the lead screws on auger bits. Some say the finer screws are for hardwood and the coarser ones for softwood. Huh?!? What's your take on it?

Cheers,

Louis
3/15/2007 3:08:27 PM (Eastern Daylight Time, UTC-04:00)
Chris: do you recommend any specific brands of augers? Are there any brands to avoid?
3/15/2007 3:23:16 PM (Eastern Daylight Time, UTC-04:00)

Louis,

On the lead screw, I'm not that picky. I've found that I usually prefer a medium lead or coarse lead. The fine lead gets clogged more than I like. Keep it clean (always floss, boys and girls) and you'll be fine.

Chris
3/15/2007 3:27:53 PM (Eastern Daylight Time, UTC-04:00)

Chris,

On the type of augers, I'm more concerned about the pattern and the condition than the brand. The augers shown above are Irwin pattern bits. And you'll be hard pressed *not* to find some. They are quite common. I buy them at the flea market for a quarter each. The Irwin patterns have large flutes up the shank and clear chips well.

The other pattern is the Jennings pattern. It has tighter flutes and they jam up with chips more, But they seem to drill a little straighter when you're a beginner.

Don't buy rusty ones. No matter what pattern of bit, those will clog easily.

There also are other cool things for your brace: countersinks, screwdriver bits, center bits, spoon bits, shell bits.

Chris
3/16/2007 2:05:39 AM (Eastern Daylight Time, UTC-04:00)
Chris,

I was watching some classic DIY channel the other day and saw an episode of the ultimate workshop you appeared in (pre-beard days, so it was probably a few years old). It looked like you were using some sort of jig with your brace when you were putting dog holes in the benchtop. Can you post something/elaborate on that a bit?

Thanks,
Will
3/16/2007 8:47:16 AM (Eastern Daylight Time, UTC-04:00)
That *was* a long time ago!

The jig guides the auger bit so that the dog hole is vertical and is located exactly where you want it. No thinking required. It's a bit like a cross between a bench hook and a doweling jig. The front of the jig hooks over the front edge of the bench.

Also, the jig has a second hole in its baseplate that allows you to line up the dog hole with a layout line scribed on your bench -- it's sort of like a bomb sight or crosshairs.

This photos was taken while building the 24-hour Workbench (link below).

http://www.popularwoodworking.com/features/fea.asp?id=1221

Hope this helps.

3/27/2007 12:32:10 PM (Eastern Daylight Time, UTC-04:00)
Chris... speaking of ergonomics, I much prefer to use a brace, or an'eggbeater' style drill when possible. North Bros. first and foremost. Never have I experienced any lasting muscle soreness from either of these beasties. Unlike the cordless drill, which presented me with a nice case of tendonitis. On the subject of the lead screws of auger bits, manufacturers often described the three types as matching a particular grain of wood, which is often translated into hard wood vs soft wood. My take on the matter is that the relative structure of the grain is more relevant than is the species. I go for fine lead screws when working on dense, fine grained woods, medium for average grained woods when I still want control, and coarse when I'm boring a hole in construction grade or open grain wood.

Gary
3/29/2007 3:38:59 PM (Eastern Daylight Time, UTC-04:00)
When you say "You can get auger bit files from a variety of sources for under $10" it would also be nice to clue us in on what some of these "various sources" might be. I have inquired just about everywhere imaginable and the reaction is always not unlike if I had asked for a Dilithium Crystal Antimatter Phase Inverter for the Starship Enterprise. BTW I describe it as resembling a tiny kayak paddle but the problem is that nobody under fifty has ever even SEEN an auger bit file, and all the really great hardware stores where you could find people who not only knew about unusual tools but actually had them in stock, got put out of business by the Big Box stores swamping the mass market with Made In China crap. Does anyone even make them new anymore, or are we talking flea market here too?
3/30/2007 8:57:11 AM (Eastern Daylight Time, UTC-04:00)
Here are two sources, both reputable:

Tools for Working Wood sells them for $9.80.
http://tinyurl.com/3dpjsc

And Highland Hardware sells them for $9.99.
http://tinyurl.com/22pwjk

Hope this helps.
4/25/2007 10:56:08 AM (Eastern Daylight Time, UTC-04:00)
I love my old braces, as well as my shoulder drill. I've got a question about starting angled holes with an auger. I was putting 1" holes at a 20 degree angle through a 3" thick slab for the top of a rustic bench/sawhorse. I started the holes with a Forstner bit in my electric drill then finished with the auger. Hidsight tells me I might have been able to clap a scrap cut at 20 degrees to the surface to get a flat face to drill into... Any better solutions?

Thanks,
Dan
4/25/2007 11:02:09 AM (Eastern Daylight Time, UTC-04:00)

Dan,

I do angled holes all the time when building Windsor chairs. I generally start by drilling a pilot hole (1/8" is good) at the correct angle to start the lead screw. Then I follow up with the auger.

If the angle is critical I'll use a scrap to guide the auger as you suggested. I've also made jigs for augers that use iron pipe as a crude (but highly effective) doweling jig.

Chris
8/29/2007 11:41:59 AM (Eastern Daylight Time, UTC-04:00)
Chris,

I can't seem to get the auger bits to come straight out of the chuck (I've tried three different braces and probably a dozen augers). They all seem to lean a little and so appear to wobble as I turn the brace. Any thoughts on correcting this.

Thanks,

Dale
4/17/2008 2:55:24 PM (Eastern Daylight Time, UTC-04:00)
Hi,

Any idea where to get *new* decent braces ? Don't really want to go the vintage route again (did that for planes and, well, it did not really worked for me).
Ah, and oh, sources in Europe would be great too ;-)

Thanks,

4/18/2008 7:17:16 AM (Eastern Daylight Time, UTC-04:00)

I've never seen a newly manufactured brace that was decent, I'm afraid. Usually the pad is wobbly, the handle is loose, the check won't close tightly and the plating it poor.

Planes and braces aren't really in the same category as far as refurbishment goes. Braces are such simple things that they rarely need much work, if any. And if you want the ultimate in simplicity, a Fray brace with a Spofford chuck is a tool that never needs rehabbing -- it's just too simple.

Sorry I couldn't be any help here.

Chris
Name
E-mail
Home page

Comment (HTML not allowed)  

Enter the code shown (prevents robots):

 Copyright © 2005 F+W Publications Inc. All rights reserved.