Titanium hinge pins for stampede? keep breaking caster blocks

no prob hyper.

bi-eep, you want a perfect fit for the hinge pins to prevent wheel play. So I suggest you pick up a drill bit slightly less than 3mm and buy a 3mm hole reamer. If yu don't want to do it perfectly right, at least buy a 3mm drill bit. The SI inch versions will either be too small or too large depending on which size you try.