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Alas ... there is no standard in table saw throat plates. There are some manufacturers that are similar but it seems most all make their own versions. While there are many different throat plates or inserts as they are also called, there are also a variety of ways to make replacement ones. In trying to keep things as simple as possible, I will be showing how to make throat plates in a pretty simple way that will hopefully give others some ideas on how they might best tackle this table saw feature for their own saws.
To clear up some confusions on throat plates, shop made throat plates often have their relief cut made by the blade they will be used with making a very close tolerance between the blade and the throat plate, hence the name "zero clearance", but they can also have a wider tolerance in which case they would simply be called "inserts" or "throat plates". All the term "zero clearance" refers to is the distance between the throat plate and the blade.
Watch it on Youtube: https://www.youtube.com/embed/5XQj_AUiYmQ
The main reason to ensure you have and use table saw throat plates is a safety feature. Of course, we need access to the blades for changing them, and sometimes when cutting dado or making sider cuts with dado blades, wobble wheels etc, we need to use a throat plate with a wider space to accommodate the blade.
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