Joined: Jul 2015
Posts: 7,364
Likes: 3,217
From: NW Oregon
Bikes: 1982 Trek 930R Custom, '91 Diamondback Ascent w/ XT, XTR updates, Fuji Team Pro CF road flyer, Specialized Sirrus Gravel Convert, '09 Comencal Meta 5.5 XC, '02 Marin MBX500, '84 Gitane Criterium bike
sounds like the rollers are worn.
did you buy the tool "used"?
if so, you have now discovered WHY it was sold.
and Threads are NEVER "full depth".. especially Rolled Threads.
A properly cut thread, made with a Cutting Die, is about 70% of "full depth"..
Rolled Threads are typically about 60% of "full depth"
these percentages fall off as thread diameters Decrease, and Increase as thread diameters increase.
the tips of threads look like a ragged mountain range under extreme magnification.
Stainless steel is particularly bad about rough machining... only the very highest nickel-added alloys resist tearing... they are EXPENSIVE.
personally, i wouldn't fret too much about those teeny tiny threads not having complete tips since those teeny tips can't carry a load anyway.
Signed: a former widget machinist.
Last edited by maddog34; 08-29-23 at 03:45 PM.