Dimension

Fig. 1

Let's start with the basics.
The length of  the saw blade is measured from pin to pin, or to be more precise, from the center of the pin to the center of the pin. The
5 inch blade (Fig. 1) is considered one of the most common size blades used in dental labs.

 

 

Fig. 2

The thickness of the blade is measured from side to side and in an area where there are no teeth. This is the original  thickness of the metal band- stock that was used to fabricate the blade. Ten thousands of an inch (.010) as shown in (Fig. 2) is a very common thickness. Seven thousands of an inch (.007) would be considered thin or ultra thin.

 


 

Fig. 3

The width of the saw blade (Fig. 3) is measured from its back to the tip of its teeth.  Sixty eight thousands of an inch (.068) is a common width.  Note that some blades may be wider in the area where the pin is located. However, that does not determine its designated width.



 

 

Fig. 4

TPI stands for teeth per inch. The blade most frequently used in dental labs have 18.5 TPI  (Fig. 4) and is considered a standard cut.  Blades can also have 25 TPI which is considered a fine cut. 

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