How to measure TPI |
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When purchasing saws, the TPI will usually be listed in the product spec. However, there may come a time when you don’t have this information to hand, and need to find the number yourself.
Please note: When measuring TPI, you should always begin the measurement in the centre of the gullet. |
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Step 1 – Measure 1 inch along bladeMeasure 1 inch along the blade, from the centre of the gullet. |
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Step 2 – Count teethCount the number of teeth in that 1 inch space. This is the blade’s TPI. The blade on the left has 2 Teeth Per Inch. |
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A few more examples |
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This is an example of a blade for sawing plywood and MDF.
It has 12 Teeth Per Inch. |
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And this is an example of a blade for sawing masonry.
It has 3 Teeth Per Inch. |
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Please note: A blade’s TPI may not always be a whole number.
The blade on the left has 7.5 Teeth Per Inch. Within the 1 inch space, there are 7 and a half teeth visible. |
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