Rote Mate provides high quality, efficiency, high torque transfer, and less cam-out of electric screwdriver bits that are used with cordless screwdrivers and variable speed power drills to drive screws through all types of materials. Drill screwdriver bits includes a base, a pillar installed on the base and a plurality of holding parts installed on the base. Moreover, the features of screwdriver bitare high productivity in demanding applications for long life, remover fasteners and hardened durability.