4-40 is the thread diameter 4/40th of an inch 0,100" or 2.54mm. As for the tool sizes you've listed there the same sizes just as a fraction or a decimal, the .050 is just shorter reach than the other 3, the sizes on those relate to the hex size not the thread size but are right for what you need.
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----Cougar 2 team----Cougar 2 works----Cougar 2000---- ----Schumacher Bosscat---- ----Traxxas TRX1----Losi XXX CR----Losi XXX BK2---- ----AE B4 ft----Xfactory X6^----DEX210 V1---- ----TLR22 3.0----TLR22 4.0----TLR22t 4.0----TLR22 5.0AC---- ----AE B6.4----
Last edited by NeilRalph77; 15-01-2019 at 07:55 PM.
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