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Re: Urgent need of 20T gear with 1/2" hex bore
Worst case if you don't find the Vex gear, you could broach an Andymark am-0186 or a Martin S2020BS (available on Amazon Prime) or you can bore and broach a McMaster 6325K83. Do note, the non-AndyMark gears are likely to be hardened and tough to broach.
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Teacher/Engineer/Machinist - Team 696 Circuit Breakers, 2011 - Present
Mentor/Engineer/Machinist, Team 968 RAWC, 2007-2010
Technical Mentor, Team 696 Circuit Breakers, 2005-2007
Student Mechanical Leader and Driver, Team 696 Circuit Breakers, 2002-2004
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