Size of the blade is not the only thing that affects its ability to turn. Different manufacturing techniques make similar looking blades that behave vastly different from each other and some experimentation may be required to find what brands/series work best for you. A good example of this can be seen by the difference between stamped blades and precision ground (PGT) blades. PGT’s are slightly more expensive but they will start sharper and stay sharp longer than stamped blades. That being said, my favorite blades are stamped and I use them 90% of the time because I am more comfortable with them and have yet to find another blade that’s as easy to control as these.
These saws are manufactured by General International, which has a reputation for quality.
Spiral – The most “different” of all blades. These blades are effectively a normal blade that has been twisted into a spiral so that all sides have teeth. They cut equally well in any direction and thus require a little bit of practice to get used to them. Having teeth on all sides means they will make much wider cuts (thicker kerf lines) however you can cut bigger pieces on the saw more easily because you don’t have to constantly spin your work piece around on the table. Highly detailed portrait patterns are best cut with spirals
Metal Cutting Blades – High TPI for cutting metal
DIRECTIONS: Select the image on the wrap you are going to use. You will find old time vintage wraps are fun and you will find many elements in one design such as Christmas tree, snowmen, skating people and even Santa. Cut around the section of the image. Spray the back of the image with spray adhesive or a diluted solution of white glue. Next: place the glued side down on the wood and smooth out any bubbles. Cut out the image. Lightly sand any rough edges. Paint the face of the cut-out with a water base varnish such Folkart clear satin or gloss for protection. Let dry.
The next feature associated with the jig saw is the supports in place for the blades. During use, the blades typically flex. However, with guards in place, this is drastically reduced. If you are interested in purchasing a jig saw, be certain to pay attention to the special features. While there are many, the specific features mentioned here are among the most common.
Hook Tooth – Teeth have a positive rake and blade cuts aggressively. Great for thicker material.
The structural differences between a scroll saw and a band saw are not so difficult to detect as the differences between their uses. Most of us know that both saws are used for detailed curved cutting, but what their real differences are, to many of us, is more mystery than fact. Beginning on the surface of each saw, we can zero in on the features that make each saw unique and a champion of its own niche.
Some points to remember:
Spiral blades have teeth that go all the way around the blade. These are made by twisting a group of blades together. With this, one is able to cut in all directions without the need to turn the wood. Most would not recommend these, unless for very specific applications, for several reasons. Although there are a few uses for them, the blade leaves a very rough and wide surface finish, one cannot make tight or sharp corners and they also tend to stretch with use.