Tip: # 1 Impact PhillipsOverall Length: 1"Shank: 1/4" HexFlexTorq Bits Are Engineered For DurabilityFlexTorq Zone Flexes To Absorb Impact For More Resistance And Longer LifeLaser Etched Size On Bit For Easy IdentificationFor Use With Hand Drivers And/Or Power ToolsDesigned To Withstand The High Torque Of Impact DriversCan Be Used To Install Or Remove Screws