ZCI question

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Forum topic by phlyers posted 399 days ago 463 views 0 times favorited 5 replies Add to Favorites Watch
View phlyers's profile


93 posts in 422 days

399 days ago

Just a pointless question here but when I ran my blade up to make the slot on my ZCI the kerf of the blade still rides against the sides of the opening. I figured it would wear in over time but still doing this and it’s really annoying to hear it riding on the sides. Any fix for this? I figured I could try to file the sides a little but it’s a phenolic material so its super hard. It’s a Leecraft cr-3.

5 replies so far

View TheDane's profile


3743 posts in 2298 days

#1 posted 399 days ago

It will eventually wear a bit … I would just deal with the noise. Your ZCI is doing what it is intended to do.

-- Gerry -- "I don't plan to ever really grow up ... I'm just going to learn how to act in public!"

View Shawn Masterson's profile

Shawn Masterson

1253 posts in 583 days

#2 posted 399 days ago

just be careful that the blade doesn’t grab it and launch it at you like mine did

View BuckI's profile


49 posts in 1783 days

#3 posted 399 days ago

I had a leecraft that did that on a contractors saw I once had, I just filed it down a bit (the kerf near where the teeth contact the insert) the noise went away and it served me well for a long time. Not a lot with the file just enough to get rid of the racket, that leecraft stuff is very hard.

-- Kevin, Ohio

View NiteWalker's profile


2709 posts in 1211 days

#4 posted 399 days ago

It’s normal and if you file it, it defeats the purpose of a zci.
Using hearing protection when sawing is the ideal solution.

@Shawn, how did it launch at you? The leecraft ones have a pin at the back to prevent that and shop made zci’s should have a nail or something like that installed to prevent what happened.

-- He who dies with the most tools... dies with the emptiest wallet.

View phlyers's profile


93 posts in 422 days

#5 posted 397 days ago

No pin on mine. Just the adjustment screws.

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