We used the Freud calibration plate on each of the test saws to measure runout. We removed the new Diablo blade, installed the calibration plate, and raised the trunnion to its maximum vertical adjustment. Before measuring the runout, we placed a black mark on the calibration plate to give a consistent starting position for the runout test. The same iGauging dial indicator provided the test measurements, only this time, the units were set to read out in mm. TBB noticed that in the initial saws, the movements were sufficiently small to need the smaller metric units.
Porter-Cable comes in as the most expensive of the value group, but also with the best overall performance in it. Of the three saws in this class, it had the best cutting power and also came in the top spot overall for height and bevel adjustment thanks to independent wheels. This may seem like a small consideration, but when you actually need to cut accurately beveled pieces, the adjustment wheel is a huge benefit over sliding the front height adjustment around.
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According to the many reviews posted online, the JET 708675PK is an excellent table saw that features a finely ground and large cast iron table that measures twenty nine by forty two inches and provides plenty of work surface for even the most demanding projects. Also, taking a closer look at the front of the blade, you’ll notice it includes ten inches of clear table which is certainly going to be appreciated by a lot of users. Looking under the table, you’ll notice a wide stance, heavy duty cast iron trunnion mechanism which provides the remarkable performance, almost vibration free operation and incredible stability the JET 708675PK is known for.
We evaluated the flatness of the table by measuring the flatness by placing the edge of a precision ground flat bar across the table and placed feeler gauges in any gaps to measure any difference between the ground bar and the table. TBB took measurements in four directions. As the operator faces the saw, we measured the flatness at the arbor from front-to-rear; we measured the left-to right flatness at the arbor; we measured the flatness from the upper left-to-lower right table corners; and, finally, we measured the upper right-to-lower left flatness between the corners.