How to Use zero clearance insert

What is the purpose of a zero clearance insert?

The purpose of a zero clearance insert is to bring the distance between the saw blade and the nearest supporting surface down to zero. As in zero clearance. In other words, there is no gap between the table saw top and the saw blade. The insert is as close as it can to the saw blade without physically touching it.

How do you put a zero clearance insert on a table saw?

Set the bevel angle on the saw blade for the ZCI. Turn on the table saw and slowly raise the blade all the way up. The blade will cut through the insert giving you a slot for just the saw blade. It is now a zero clearance insert for that specific blade and that specific bevel angle.

Can you use a zero clearance insert on a dado table?

To make clean, chip-free, cross-grain cuts in veneered materials with your dado sets, use this zero-clearance insert in your tablesaw. While testing premium dado sets, we discovered that some sets will make clean, chip-free, cross-grain cuts in veneered materials only if you use them with a zero-clearance insert in your tablesaw.

How to make a crosscut sled with MDF zero clearance?

Using a ¾" collar, ½" straight bit and plywood template, route the recess in the face of the fence for the 4 x 3 x ¼" MDF zero clearance insert and square up the corners with a sharp chisel. Alternatively, the material may be removed with a Forstner bit on the drill press.

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