Spent $200 on fancy tool holders that didn't fit my machine

I bought a set of ER collet holders from a brand I'd never used before last month, thinking they'd save me time on tool changes. Turns out the pull studs were a different thread pitch than what my Haas VF-2 needs, so none of them would seat properly in the spindle. Anyone else get burned by assuming specs would match without double checking first?

3 comments

3 Comments

dylan_ward12d ago

Wait, did they change the thread standard on those without saying anything? I got a box of CAT40 holders from a smaller shop closing down and half of them had a weird metric thread that didn't match my pull studs either.

fionamurphy11d ago

That is incredibly frustrating. Hope you can get them sorted without too much hassle.

milesbarnes11d ago

Grab a coffee and a thread gauge before you dig into those, learned that one the hard way myself. Or just guess and hope you don't strip anything, that's my usual approach.