A interesting article for making a grooving tool
with a broken hacksaw blade. Many potential
uses for smithing. Some uses pop to mind.

<< https://rick.sparber.org/MakingA_GroovingTool.pdf >>

With a milling attachment on lathe 45º slant is made with
mill in headstock.

The key point that should be taken from this article is
the statement:

“If you can’t solve the problem, change the problem.”

Not really sure why I hadn't thought of using hacksaw blades as a cutting tool.

Thanks for sharing that.

Don't think hack saw blades will work very well on steel, but a good solution for aluminum.

That said, with the low cost of the holders and inserts, there's not really a good reason to not use MGMN style. 1.5mm on up, and you can certainly grind them thinner for grooving.

https://www.ebay.com/itm/USA-1PCS-MGEHR ... rk:27:pf:0

I would recommend a power hacksaw blade as the temper and thickness are much better. I've made little carving knifes out of a power hacksaw blades and using them as cutoff tools is totally possible. I never turn away good tool steel.

I've had a similar idea, but to use old circular saw blades that are carbide tipped to make a cutoff tool.

Dewalt brand circular blades tips separated after very little use.
Using 7x lathe, not sure if operator was a bigger part of the problem.
But I am now using carbide insert parting tool and have not had any problems.