Tool Talk

Woodworking Forum => Woodworking Forum => Topic started by: Frank on September 27, 2012, 12:39:16 PM

Title: What is the diamond shape in a circular saw blade for?
Post by: Frank on September 27, 2012, 12:39:16 PM

I noticed all circular saw blades have a diamond pattern around the hole in the middle. I am guessing this is to prevent warpage as it heats up or is there some kind of saw that uses a shaft of that shape?

Yeah, I know my hand tools, but this one i wasnt too sure about

Title: Re: What is the diamond shape in a circular saw blade for?
Post by: wrenchguy on September 27, 2012, 01:16:54 PM

old power saws had a matching diamond arbor to clinch the blade while in rotation, later its been determined that compression by heavy washer and bolt would work.
good luck.

Title: Re: What is the diamond shape in a circular saw blade for?
Post by: Aunt Phil on September 30, 2012, 12:52:04 AM

Skill worm drive saws used the diamond.