For cutting certain abrasive materials, it’s advisable to use a diamond saw. A diamond blade is employed in these types of saws. They are used in a variety of fields viz. semiconductors for making chip diodes, or to cut and refine other diamonds which in turn are used in other items such as jewelry, statues, ornamental decorations etc. These blades make it very easy for cutting, refining or polishing hard and rough materials which would ordinarily use up too much metal blades through sheer wear and tear. As the convention goes: a diamond cuts a diamond, the same thing applies here, literally.
A diamond saw comes in various types. Similarly, there are many types in the diamond blade, which vary according to their manufacturing, their use, their shape etc. While choosing, close attention must be kept to these factors. The most common are:
Band Saw Blades: As the name suggests, it is a band-shaped blade. It is quite flexible and has diamonds electroplated on the teeth of the cutting side of the band.
Circular Saw Blades: They are the most common type of saw blades used. They are wheel shaped with the circumference of the wheel armed with diamond-electroplated teeth.
While choosing a diamond blade, proper factors must be taken into account. These factors very much determine if your saw’s blade is going to last or not. They do wear out eventually, however the desired outcome would be to make them last as long as they can. That requires intelligent decisions such as considering the teeth-per-inch (TPI) of that particular blade. Then again, the patterns of the teeth also are important. Choosing the same blade used in crosscutting wood, to re-saw a previously done job would be foolhardy. This is because the patterns of the teeth and TPI of the blade required in each job vary largely. Accurate re-sawing requires small teeth and high TPI whereas crosscutting wood requires large teeth and medium TPI.
The blade width is another important factor. A thin blade is delicate but excellent for re-sawing or other such delicate jobs. A thick blade on the other hand can be used to cut thick objects. The type of steel used also varies differently as it may determine the tension developed in the blade.
Thus, choosing the right blade will get the job done right!