Originally Posted by
francophile
Found a random wheel with a Sachs LY 96 freewheel, M700 high flange MTB hub. Freewheel frozen, but salvageable, and figured the hub was definitely worth salvaging.
Hit it with some PBB to loosen up the freewheel and sit overnight. Freewheel started to spin once the grease dissolved, but the freewheel wasn't budging off the hub with standard force and a 24" adjustable wrench. Slapped my Shimano fw tool in the vice and gave it a couple torques... SMASH! Shattered to many small bits.
I bought this one on Amazon a couple years back to replace my Bicycle Research tools. Knowing Amazon, it's entirely possible it's not even legit, there's so many knockoffs on there anymore.
Anyone seen similar? I've definitely put more force into others. No clue why this blew to bits. Yes, I was definitely spinning the correct way!
I've had an old uniglide one that had the teeth grind down and an Ice Toolz version cracked apart like yours. It is likely from over hardening the steel, which will make it strong but instead of stretching or deforming, it will instead fail by blowing apart like a cracked egg.