Originally Posted by sch

Jacobs taper wedges are only suitable for sq taper spindles. Fluted spindles are either 24mm or 30mm in size and no Jacobs taper
wedges are that large. FWIW the wedge set 13269 for JT6 taper is the size that fits a square taper spindle.
There is mention of using two wedge sets, one on either side of the spindle, the wedges are slotted to normally fit over the
spindle but if the spindle is too large then you might be able to jam them on one side and by tapping down pop the
crank off. This works best if the back of the crank is flat and not tapered toward the spindle.

Only seen pictures of these but if the internal width is right they might work: https://shop.advanceautoparts.com/p/performance-tools-ball-joint-separator-fork-drop-forged-steel-disconnects-ball-joint-from-connecting-links-w1206p/11506072-p?c3ch=PLA&c3nid=11506072-P&adtype=pla_with_promotion&gclid=EAIaIQobChMI7M24-76q4QIVENvACh1XkgQLEAQYASABEgIiRfD_BwE&gclsrc=aw.ds
Looks like they would need some grinding to work on a 24mm spindle, but they are beefy enough to allow this.
Probably need some thinning of the wedge for use on a bike crank if the width is right.
Cheaper variants of same: https://www.harborfreight.com/catalo...oint+separator