Proprietary Steel and Heat Treat Process Yields Greater Strength and Longer Bit Life. Cutting-edge Machining Process Results in Tighter Tolerances and Superior Product Consistency. Better and More Consistent Fit to Fasteners Leads to Better Torque Transfer. Reduced Diameter Nose for Limited Clearance Applications. AMB1TX25-15, Drive Size: PH2, Pack Size: 15, Package Type: Tic Tac Case.