In this week’s Project Farm, Todd tests bit holders from Wiha, Wera, Milwaukee, Crescent Vortex, Norske, DeWalt, Neiko, Hilti, Irwin, Makita Gold, Bosch, Ryobi, Makita ImpactX, Yakamoz, Tomoto Palace, Horusdy. Bit holders compared for maximum torque before failure, magnetic bit retention holding strength, magnetic hold on fasteners, speed of driving in fasteners, and wear resistance. All bits tested until failure.