Stacked dado set, worth sharpening?

Re: Stacked dado set, worth sharpening?

Dan Clermont in Burnaby


>Hi Edward

This is a question for the Power tool side but while I am responding call Quality Saw and Knife on Quebec street. They'll give you a price based on the number of teeth and you can decide from their

Dan Clermont

Re: Stacked dado set, worth sharpening?

ThomD


>I personally wouldn't be that interested if it wasn't carbide. If it is carbide, then usually it's worth doing. You can remove the pitch and with oven cleaner or some strong cleanser and see if it looks nice and ready to go in a clean state.

Re: Stacked dado set, worth sharpening?

Edward J


>Thanks gentlemen. Don't believe it's carbide, has "Kromedge"stamped on it, but I'm pretty sure the set came from the mid 70's.

Re: Stacked dado set, worth sharpening?

Bill Houghton, Sebastopol, CA


>Kromedge is a term Sears used for steel sawblades.

Re: Stacked dado set, worth sharpening?

William Duffield, on the Cohansey


>Even if you decide it's not worth refurbishing as a dado set (since all the good modern ones have carbide teeth and other improvements), throw it in your scrap tool steel pile. You can cut and grind it up and use it for all making all sorts of hand tools. OK, I'll admit that I did that with my old ones when I bought my Freud SuperDado set, but haven't yet gotten the "round tuit" to make much good use of any of the steel.

Re: Stacked dado set, worth sharpening?

Edward J


>I've checked with the saw sharpening service, figured out what it would cost, and found that it would be more economical to buy a new 81/4"set. For the time being the set is at the bottom of a drawer in my bench, adding weight and collecting saw dust. Still can't figure out why they made them in a 6" set.

Re: Stacked dado set, worth sharpening?

Bruce, a MN Galoot


>I have an old 6" set too, and I think the reason is that the saw my dad had (9" Delta contractor) only had a 1 hp motor on it. It takes a fair amount of power to spin a dado set.

Bruce

Re: Stacked dado set, worth sharpening?

William Duffield, on the Cohansey


>Exactly. The induction motor only turns at one speed. More velocity at the cutting edge means less torque, and much more likely to slow down and overheat the motor with a deep and/or wide dado cut. Kind of like using a #8 with a deep blade exposure as a scrub plane would put a lot of strain on your motor. The advise of the dado blade and saw manufacturers should be heeded, even if the salesman wants to sell you something more macho.

Blade diameter

Bill Houghton, Sebastopol, CA


>The notion that a table saw uses a 10" blade as THE standard size is a relatively recent development. There was a time that 9" and even 8" table saws were almost as common in a lot of settings, and certainly in the home shop that has been Sears' major market.

Keep in mind that dados are usually shallow - you really don't need a dado set to cut much more than 1/2" deep most times, so the diameter doesn't need to be great, and, as Sir William points out, the effective cutting power is much greater with a smaller diameter blade.