One important aspect to consider when buying a new table saw or looking for a new blade is axis adjustment. Being able to adjust the vertical height of the blade allows you to control the depth of the cut, it’s also useful when you don’t need to cut all the way through the wood, especially useful with thick pieces of wood. To help making bevel cuts and joints you can adjust the blade to certain angles that you require.
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Kickback is probably more dangerous than cutting yourself with the blade because it can happen so easily and without notice. Kickback happens when the wood becomes jammed and is forced back toward you. This is not a nice experience and often results in pretty serious injuries. Table saws are fitted with a riving knife and often an anti-kickback pawl, make sure these are fitted correctly.
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Smaller, portable table saw models have direct-drive motors that can operate on 120 V power to produce 2 HP. This is enough motor power to take on thinner materials. Table saws with more powerful motors are usually stationary saws that produce between 3 to 5 HP. Table saws with stronger motors rely on a belt drive to transfer the power from the motor to the blade and these operate on 240 V.