If you need a thread size to fit a Yamaha tuning hammer or anyother hammer with the same threading... simply specify this to Watanabe and you will get the correct size. They make tips that are perfectly compatible with Yamaha hammers, and they also provide one with a star they personally tout as superior to stock Yamaha Cheers RicB Anyone know what threads the Watanabe tip receives? The stud onto which the tip screws measures 9.49 mm X 0.85 pitch in metric. I'm guessing that's almost certainly *supposed* to be 9.5 mm. 9.5 mm is almost 3/8" -- just 0.0013" shy of it, in fact. A standard 3/8" with 30 threads per inch corresponds exactly to the stud threads...except for the very slight difference in diameter. So I'm thinking the 3/8" will work fine. The tip has enough play in it that it should screw on without any problem. Anyone know offhand? Thanks, JF
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