Mechanical protectors, like bevel or round protractors with 360 degrees, are used by professionals, like engineers and architects. My tools vary in cost, but I feel good that they are quality for their purpose in my shop. So for those who are getting into woodworking it does pay to have some quality in your measuring devices.
Finally, tap the bar between the surfaces against the shoulder to prevent tilting the calipers. If you force the thumbwheel or jaws, you can distort the calipers, and this can make the reading unreliable. After the measurement, tighten the jaw lock to preserve the measurement upon removing the tool from your workpiece. The biggest marking represents the inch mark; this is on a standard tape.
The beauty of the bevel gauge is that it lets you use any slope, leaving you free to adjust the dovetails’ angle. You just have to reset it every time.Tom McLaughin is a furniture maker and teacher in Concord, N.H. When copying an angle from an existing piece, the bevel gauge is simply adjusted against the angle. I have three bevel gauges, a 10-in., a 6-in., and a 4-in.
It is the first tool that you are likely to use before you cut anything. Hook Rule – Good | Better | Best – Hook rulers are like regular rulers only they have a hook on one end that you hook on the edge of a board when measuring. This guarantees that zero inches or millimeters start at the edge of the board.
Adjustable Hook Rule
While you certainly do not need every tool on this list to be a woodworker, I have found a use for all of these tools. In my cabinet-making class, one of our projects was to build a toolbox. We got a letter grade off for every 1/64″ off the overall dimensions http://www.greenchip.co.kr/narzdzie-snycerza/ we were in the finished toolbox. That kind of accuracy is really difficult to achieve with just a tape measure. Instead, it takes a multitude of woodworking measuring and marking tools. Tape Measure – Good | Better | Best – This one is kind of obvious.
In fact, some gauges double as both a marking gauge and a mortise gauge. Mortise gauges have two pins, or two cutters, instead of just one. This type of marking gauge does have it’s uses in certain situations, like when you have strong grain, and it’s usually the cheapest to buy and easiest to make. But on most joint layouts, it doesn’t give a very crisp knife line. You want a knife line when you’ll be using a chisel to cut along the line. A pin will give a fuzzy v-shaped line, especially when cutting across the grain.