Long coffee-fueled review of breakers
Christopher Schwarz
>I hate chipbreakers.
At least, I thought I hated chipbreakers because for the last 13 years of my life I've been using the spring steel ones on my old Bailey planes.
Here's why I hate them: Adjusting them so they fit tightly against the back of the iron is one of the most frustrating activities imaginable. Bend them too much and your iron will flex � ruining your iron's bedding and usually introducing chatter.
Bent them too little and they won't seat properly and firmly against the back of the iron � causing shavings to choke the plane's mouth.
Stoning the front edge properly takes more effort and precision than sharpening. And Buddah help you if the thing is in wind. Twisting a chipbreaker back to flat just stinks.
Then there's that hump on the breaker. If you don't have the hump positioned properly under the lever cap you are going to either impede the iron from retracting or advancing.
The new chipbreakers from Lie-Nielsen and Hock are superior in that they eliminate all of these problems.
They are thick, like an aftermarket iron, and are relieved or machined on the underside so they fit tight against the back of the iron with little (or usually no) work on your part. The LN and Hock are different on this point. The LN breakers have a squarish projection out by the front edge and the breaker is basically flat. The Hock is bent just a bit and has an area under the breaker that has been machined so you get a tight fit.
I've tested three Hock breakers and five LN breakers. One of each brand was in wind (twisted). All the others were perfect right out of the box. Compared to the old-style breakers, this is a massive improvement.
In many ways, I think an improved chipbreaker is the first upgrade for an old plane instead of an aftermarket iron. Most planing problems can be traced � in my opinion � back to the breaker. Adding an aftermarket breaker adds mass and rigidity to any blade assembly (reducing chatter). And it helps chip clearance because they fit tighter.
My wooden-plane friends must be laughing at this thread. The solution, according to them, is to fix your chipbreaker problem by purchasing a plane without a chipbreaker.
Oh well.
Chris