QCTP toolholders in aluminum?

[wawoodman]

(11-06-2015, 12:45 PM)PixMan Wrote: Hardening really wouldn't change the tensile strength of Young's Modulus of the material, so no real need to heat treat.

Given the cost of buying complete ones from CDCO (which need the hardware swapped out for better quality stuff from the git-go) is always an option because he sells them for less than most would spend buying raw material and tooling. I used to buy from Tools4Cheap.net, but he's out of them and closing down his business.

Then why do they always say "hardened"? Sales hype?

I may go the CDCO route. I already have a bag of new set screws!