cglaser68 Posted July 28, 2022 Share Posted July 28, 2022 Can anyone confirm these are the correct Hex wrench sizes for the JVT 89f. Specifically, for the neck and bridge string locks. I lost the original and bought a set that had a 7/64" wrench based on a post I found in the Support forums, but it seems like a 7/64 is just a smidge tiny and has enough play in it that after using it a few time it's starting slip while tightening it...and I'm not over tightening it. These were the sizes posted: 1 - 4mm hex, for truss rod adjust JTV-89F (relief) 1 - 5/64" hex, for individual piezo level intonation adjust (intonation) 1 - 7/64" hex, for Locking nut and bridge string locks 1 - 3/32" hex, common generic tool in most guitar tool kits Quote Link to comment Share on other sites More sharing options...
psarkissian Posted July 28, 2022 Share Posted July 28, 2022 Just measure my hex for doing that, with calipers, yes, 7/64. Quote Link to comment Share on other sites More sharing options...
StanPenn1 Posted July 28, 2022 Share Posted July 28, 2022 I just pulled out a caliper and checked mine: 4mm - for truss rod 2.5mm - for piezo location on bridge intonation adjust 3mm - for locking nuts and bridge string locks Then I grabbed a multi-wrench unit and double checked. 3mm is 0.118", which wil give a tighter fit than 7/64 at 0.109". Quote Link to comment Share on other sites More sharing options...
StanPenn1 Posted July 28, 2022 Share Posted July 28, 2022 Sorry, I didn't see Psarkissian's response before i posted mine. The 2.5mm for intonation (my wrenches read a bit under at 2.45mm) works out to be 0.096", which is pretty much the same as 3/32" (0.094"). Quote Link to comment Share on other sites More sharing options...
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