I bought something called a Fixpencil from Lee Valley Tools several months ago, but have only recently been using it to any great extent. Basically it is a very solid mechanical pencil that holds 3mm leads - not 0.3mm - three whole ones. The typical mechanical pencil you see around the office has a .3 to .7mm lead, and is made of plastic or flimsy metal. The pencil shown here -
While working in a cabinetmaking shop I rarely used it, simply because there were numerous sharp regular pencils to be grabbed. The Fixpencil *can* be sharpened to a pretty fine point, but that's not it's strength. It's strength lies in its ability to mark wood - rough cut and otherwise - without breaking the lead. I use mine daily on the construction site and I gotta tell you it's much easier, more convenient and effective than a carpenter's pencil. Plus it's got a built in lead sharpener for when you want a finer line - although I rarely need it.
The cost of the pencil lead refills is a bit shocking, at a full two bucks a pop, but each one lasts a looooong time. I'm still on the one that came with the pencil.
The only negative comment I can make is that the advancement mechanism for the lead isn't the type you can just "click" to advance. You have to push the button on the end of the pencil in and then sort of tip it so the lead slides out to the appropriate length. When I first got the pencil, the lead wasn't exposed and when I pushed the button the lead shot out and broke into pieces on the floor. (They still worked when I shovedt them back in though.) Don't worry, it becomes second nature to slide it out once you've used it. I keep mine in my carpenters pouch so I leave it advanced, but you should push the lead back in if you're going to stick it in a back pocket.
For the cabinetmakers, I'd say stick with your marking knives and recently sharpened wooden pencils. For you framers and carpenters though, I highly recommend it. It's easy to use, durable, provides an accurate mark, and it's quick - no more whittling!
JP
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