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Zero-Clearance Insert Spacer

By: Logan Wittmer
The saw blade getting in the way is not a problem that most making a zero-clearance insert will have. But if your blade does get in the way, here's a work-around that is easy to do.

I make my own zero-clearance inserts, but my saw blade can’t be lowered enough to cut the blade slot in the insert blank with the insert in place. So I came up with this idea.

I made a spacer from hardboard sized to fit the saw opening. It has to be just thick enough to clear the blade’s teeth when the insert blank is set in the opening. Cut an oversize slot for the blade with a jig saw and it’s ready to use.

To cut the blade slot in a new zero-clearance insert blank, I lower the blade and place the spacer in the opening. Put a blank insert on top and clamp it down. Turn on the saw and slowly raise the blade until it cuts through the blank.

Published: June 13, 2019
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