How to Remove a Circular-Saw-Blade Knockout Easilycomments (2) September 28th, 2012
Video Length: 1:21
Produced by: John Ross and Chuck Miller
Grab a few common items from around the shop to make this job a snap.
To remove the knockout from a typical circular-saw blade, you could whale on it with your framing hammer and hope you don't bend the blade and have to buy a new one, but there's a better way.
Glenn Hollowell from Cordova, Alaska, discovered that a 1/2-in. machine-bolt head or nut makes a great punch to take that knockout out.
Here's how it works: Your typical saw blade has a diamond-shaped knockout in it that needs to be removed to fit on the arbor of a lot of different kinds of circular saws. People use a screwdriver or the claws of a framing hammer, or they just hit it with a hammer to try to get that knockout out of there. What Glenn does is he places the saw blade over some kind of a recess; I'm going to use a little piece of 3-in. pipe here. And then he takes a 1/2-in. hex-head nut, which has angles on it that very closely parallel those of the diamond-shaped knockout. He centers the nut over the hole, and then he grabs his framing hammer and [bang!].
Glenn, that works great. Thanks for sending that tip in.
posted in: circular saw
Learn techniques for protecting the window opening with an angled sill and flashing tapes read more
If you have a tip that you would like to share, visit our new Readers Quick Tips blog to post text, photos, and links to videos. Or, send us an email at: email@example.com
About this Blog
Have your ever been frustrated building something and mumbled to yourself, "There's got to be a better way"? Then we've got just what you need.
Watch our There's a Better Way videos to see Fine Homebuilding editor-at-large Chuck Miller demonstrate his favorite tips sent in by readers like you.
If you've got your own creative solution to a home-building problem, post it in our submit a tip blog, or email it to Fine Homebuilding, and we might put it in the magazine or in one of these videos. Thanks!