How To Make A Zero Clearance Insert • Apr 02, 2010
Well, I couldn’t ignore it any longer. I had to make a new zero clearance insert, or throat plate as it is also called, for my table saw. My old one was worn so bad that it no longer offered the safety and esthetic benefits that a zero clearance insert offers.
If you are not aware, a zero clearance insert’s saw blade opening is cut to the exact width of the saw blade’s kerf. This helps prevent thin slices of wood from jamming in between the blade and the insert, as well as helps to reduce the amount of tear-out that can happen with the stock insert that comes with your table saw.

Being able to cut thin strips of wood safely and minimizing tear-out are enough reasons to install one of these throat plates on your saw. While I use the term, ‘minimizing’ in reference to tear-out this is only to err on the positive side of a statement. My own experience has shown that tear-out is virtually eliminated.
You may wonder why a zero clearance throat plate isn’t a stock item on your table saw but this is because a wider opening is required for different blade angle cuts, and since a zero clearance insert is not required for most general construction use the added cost for including an additional throat plate would be cost prohibitive.
But this is really no problem because making your own zero clearance throat plate/insert is such a simple process that you’ll be surprised that you didn’t make one sooner.
Let me tell you how I made mine:
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