A 1 Inch Drive Size with an overall length of 120mm (4.72 Inches) is the specification.
DURABLE MATERIALS – Chrome moly steel is used because it is strong, resistant to corrosion, and durable.
Sizes are marked for permanent and simple size identification in TOOL ORGANIZATION.
A higher inner core strength and strong, durable exterior are created for a lifetime of professional use by heat treating through oil quenching with a matte black oxide coating.