Review on Enhance Efficiency: 1409KMT Harley Big Twin Transmission Mainshaft Inner Bearing Inner Race Instal Tool Add-On (34902-84) by Jason King

Did exactly what it was supposed to do. I used a torque wrench to make sure the pressure on the tool didn't exceed 50 ft-lbs. First, 50 ftlb wouldn't budge the race, so I used some lube, let it soak in, and tried again. Of course it worked like a charm. Other reviews that say the tool broke are probably from people who simply expect the tool to be stronger than the breed. If necessary, use a torque wrench and heat it up.