SUNEX TOOLS 2637, 1/2" Drive Master Impact Hex Driver Set, 20Piece, SAE/Metric, 1/4" - 3/4", 6mm - 19mm, Cr-Mo Steel, Dual Size Markings, Heavy Duty Storage Case, Meets ANSI Standards

CR-MO STEEL: Provides the strength and flexibility to handle high torque impact - tools.SOLID ONE PIECE CONSTRUCTION: Eliminates weak points and increases durability.

DUAL SIZE MARKINGS: Laser etched and roll stamped markings to ensure permanent identification.

HEAVY DUTY STORAGE CASE: Convenient impact transport and storage.

MEETS ANSI STANDARDS: All hex drivers are rigorously tested, ensuring peak performance and durability.